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Finding the Fourth Proportional to 71,188.34, 98,241.96 and 39,359.29

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Solution

The fourth proportional to 71,188.34, 98,241.96 and 39,359.29 is: 54,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.34 : 98,241.96 = 39,359.29 : x
  2. Step 2: Convert to fraction form
    71,188.34/98,241.96 = 39,359.29/x
  3. Step 3: Cross multiply
    71,188.34x = 98,241.96 × 39,359.29
  4. Step 4: Simplify right side
    71,188.34x = 3,866,733,793.81
  5. Step 5: Solve for x
    x = 3,866,733,793.81/71,188.34
  6. Step 6: Final answer
    x = 54,316.95

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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.