Home / 89,689.30-123,766.66-49,402.19

Finding the Fourth Proportional to 89,689.30, 123,766.66 and 49,402.19

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Solution

The fourth proportional to 89,689.30, 123,766.66 and 49,402.19 is: 68,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,689.30 : 123,766.66 = 49,402.19 : x
  2. Step 2: Convert to fraction form
    89,689.30/123,766.66 = 49,402.19/x
  3. Step 3: Cross multiply
    89,689.30x = 123,766.66 × 49,402.19
  4. Step 4: Simplify right side
    89,689.30x = 6,114,343,805.97
  5. Step 5: Solve for x
    x = 6,114,343,805.97/89,689.30
  6. Step 6: Final answer
    x = 68,172.50

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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.