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Finding the Fourth Proportional to 71,162.98, 98,204.93 and 39,331.88

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Solution

The fourth proportional to 71,162.98, 98,204.93 and 39,331.88 is: 54,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,162.98 : 98,204.93 = 39,331.88 : x
  2. Step 2: Convert to fraction form
    71,162.98/98,204.93 = 39,331.88/x
  3. Step 3: Cross multiply
    71,162.98x = 98,204.93 × 39,331.88
  4. Step 4: Simplify right side
    71,162.98x = 3,862,584,522.17
  5. Step 5: Solve for x
    x = 3,862,584,522.17/71,162.98
  6. Step 6: Final answer
    x = 54,278.00

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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.