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Finding the Fourth Proportional to 89,689.01, 123,770.97 and 49,402.91

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Solution

The fourth proportional to 89,689.01, 123,770.97 and 49,402.91 is: 68,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,689.01 : 123,770.97 = 49,402.91 : x
  2. Step 2: Convert to fraction form
    89,689.01/123,770.97 = 49,402.91/x
  3. Step 3: Cross multiply
    89,689.01x = 123,770.97 × 49,402.91
  4. Step 4: Simplify right side
    89,689.01x = 6,114,646,400.95
  5. Step 5: Solve for x
    x = 6,114,646,400.95/89,689.01
  6. Step 6: Final answer
    x = 68,176.10

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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.