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Finding the Fourth Proportional to 71,167.88, 98,209.96 and 38,901.06

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Solution

The fourth proportional to 71,167.88, 98,209.96 and 38,901.06 is: 53,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,167.88 : 98,209.96 = 38,901.06 : x
  2. Step 2: Convert to fraction form
    71,167.88/98,209.96 = 38,901.06/x
  3. Step 3: Cross multiply
    71,167.88x = 98,209.96 × 38,901.06
  4. Step 4: Simplify right side
    71,167.88x = 3,820,471,449.30
  5. Step 5: Solve for x
    x = 3,820,471,449.30/71,167.88
  6. Step 6: Final answer
    x = 53,682.52

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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.