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Finding the Fourth Proportional to 69,636.63, 96,100.86 and 39,421.32

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Solution

The fourth proportional to 69,636.63, 96,100.86 and 39,421.32 is: 54,402.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,636.63 : 96,100.86 = 39,421.32 : x
  2. Step 2: Convert to fraction form
    69,636.63/96,100.86 = 39,421.32/x
  3. Step 3: Cross multiply
    69,636.63x = 96,100.86 × 39,421.32
  4. Step 4: Simplify right side
    69,636.63x = 3,788,422,754.34
  5. Step 5: Solve for x
    x = 3,788,422,754.34/69,636.63
  6. Step 6: Final answer
    x = 54,402.73

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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.