Home / 81,260.38-112,145.19-45,461.92

Finding the Fourth Proportional to 81,260.38, 112,145.19 and 45,461.92

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Solution

The fourth proportional to 81,260.38, 112,145.19 and 45,461.92 is: 62,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.38 : 112,145.19 = 45,461.92 : x
  2. Step 2: Convert to fraction form
    81,260.38/112,145.19 = 45,461.92/x
  3. Step 3: Cross multiply
    81,260.38x = 112,145.19 × 45,461.92
  4. Step 4: Simplify right side
    81,260.38x = 5,098,334,868.13
  5. Step 5: Solve for x
    x = 5,098,334,868.13/81,260.38
  6. Step 6: Final answer
    x = 62,740.72

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Double scale
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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.