Home / 87,864.74-121,253.15-47,578.61

Finding the Fourth Proportional to 87,864.74, 121,253.15 and 47,578.61

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Solution

The fourth proportional to 87,864.74, 121,253.15 and 47,578.61 is: 65,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,864.74 : 121,253.15 = 47,578.61 : x
  2. Step 2: Convert to fraction form
    87,864.74/121,253.15 = 47,578.61/x
  3. Step 3: Cross multiply
    87,864.74x = 121,253.15 × 47,578.61
  4. Step 4: Simplify right side
    87,864.74x = 5,769,055,490.96
  5. Step 5: Solve for x
    x = 5,769,055,490.96/87,864.74
  6. Step 6: Final answer
    x = 65,658.37

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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.