Home / 81,332.38-112,213.10-45,516.70

Finding the Fourth Proportional to 81,332.38, 112,213.10 and 45,516.70

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Solution

The fourth proportional to 81,332.38, 112,213.10 and 45,516.70 is: 62,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,332.38 : 112,213.10 = 45,516.70 : x
  2. Step 2: Convert to fraction form
    81,332.38/112,213.10 = 45,516.70/x
  3. Step 3: Cross multiply
    81,332.38x = 112,213.10 × 45,516.70
  4. Step 4: Simplify right side
    81,332.38x = 5,107,570,008.77
  5. Step 5: Solve for x
    x = 5,107,570,008.77/81,332.38
  6. Step 6: Final answer
    x = 62,798.73

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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.