Home / 89,515.38-123,531.67-49,231.72

Finding the Fourth Proportional to 89,515.38, 123,531.67 and 49,231.72

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Solution

The fourth proportional to 89,515.38, 123,531.67 and 49,231.72 is: 67,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,515.38 : 123,531.67 = 49,231.72 : x
  2. Step 2: Convert to fraction form
    89,515.38/123,531.67 = 49,231.72/x
  3. Step 3: Cross multiply
    89,515.38x = 123,531.67 × 49,231.72
  4. Step 4: Simplify right side
    89,515.38x = 6,081,676,341.28
  5. Step 5: Solve for x
    x = 6,081,676,341.28/89,515.38
  6. Step 6: Final answer
    x = 67,940.02

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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.