Home / 89,515.64-123,529.12-49,229.40

Finding the Fourth Proportional to 89,515.64, 123,529.12 and 49,229.40

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Solution

The fourth proportional to 89,515.64, 123,529.12 and 49,229.40 is: 67,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,515.64 : 123,529.12 = 49,229.40 : x
  2. Step 2: Convert to fraction form
    89,515.64/123,529.12 = 49,229.40/x
  3. Step 3: Cross multiply
    89,515.64x = 123,529.12 × 49,229.40
  4. Step 4: Simplify right side
    89,515.64x = 6,081,264,337.05
  5. Step 5: Solve for x
    x = 6,081,264,337.05/89,515.64
  6. Step 6: Final answer
    x = 67,935.21

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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.