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Finding the Fourth Proportional to 71,324.10, 98,427.18 and 39,495

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Solution

The fourth proportional to 71,324.10, 98,427.18 and 39,495 is: 54,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,324.10 : 98,427.18 = 39,495 : x
  2. Step 2: Convert to fraction form
    71,324.10/98,427.18 = 39,495/x
  3. Step 3: Cross multiply
    71,324.10x = 98,427.18 × 39,495
  4. Step 4: Simplify right side
    71,324.10x = 3,887,381,474.10
  5. Step 5: Solve for x
    x = 3,887,381,474.10/71,324.10
  6. Step 6: Final answer
    x = 54,503.06

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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.