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Finding the Fourth Proportional to 73,009.67, 109,514.19 and 28,605.07

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Solution

The fourth proportional to 73,009.67, 109,514.19 and 28,605.07 is: 42,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,009.67 : 109,514.19 = 28,605.07 : x
  2. Step 2: Convert to fraction form
    73,009.67/109,514.19 = 28,605.07/x
  3. Step 3: Cross multiply
    73,009.67x = 109,514.19 × 28,605.07
  4. Step 4: Simplify right side
    73,009.67x = 3,132,660,523.37
  5. Step 5: Solve for x
    x = 3,132,660,523.37/73,009.67
  6. Step 6: Final answer
    x = 42,907.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.