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Finding the Fourth Proportional to 73,514.63, 101,450.19 and 39,980.63

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Solution

The fourth proportional to 73,514.63, 101,450.19 and 39,980.63 is: 55,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,514.63 : 101,450.19 = 39,980.63 : x
  2. Step 2: Convert to fraction form
    73,514.63/101,450.19 = 39,980.63/x
  3. Step 3: Cross multiply
    73,514.63x = 101,450.19 × 39,980.63
  4. Step 4: Simplify right side
    73,514.63x = 4,056,042,002.57
  5. Step 5: Solve for x
    x = 4,056,042,002.57/73,514.63
  6. Step 6: Final answer
    x = 55,173.27

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.