Home / 83,864.32-115,732.08-47,572.66

Finding the Fourth Proportional to 83,864.32, 115,732.08 and 47,572.66

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Solution

The fourth proportional to 83,864.32, 115,732.08 and 47,572.66 is: 65,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,864.32 : 115,732.08 = 47,572.66 : x
  2. Step 2: Convert to fraction form
    83,864.32/115,732.08 = 47,572.66/x
  3. Step 3: Cross multiply
    83,864.32x = 115,732.08 × 47,572.66
  4. Step 4: Simplify right side
    83,864.32x = 5,505,682,892.93
  5. Step 5: Solve for x
    x = 5,505,682,892.93/83,864.32
  6. Step 6: Final answer
    x = 65,649.88

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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.