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Finding the Fourth Proportional to 71,023.96, 98,013 and 39,192.88

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Solution

The fourth proportional to 71,023.96, 98,013 and 39,192.88 is: 54,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,023.96 : 98,013 = 39,192.88 : x
  2. Step 2: Convert to fraction form
    71,023.96/98,013 = 39,192.88/x
  3. Step 3: Cross multiply
    71,023.96x = 98,013 × 39,192.88
  4. Step 4: Simplify right side
    71,023.96x = 3,841,411,747.44
  5. Step 5: Solve for x
    x = 3,841,411,747.44/71,023.96
  6. Step 6: Final answer
    x = 54,086.14

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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.