Home / 87,934.46-121,343.79-56,099.96

Finding the Fourth Proportional to 87,934.46, 121,343.79 and 56,099.96

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Solution

The fourth proportional to 87,934.46, 121,343.79 and 56,099.96 is: 77,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.46 : 121,343.79 = 56,099.96 : x
  2. Step 2: Convert to fraction form
    87,934.46/121,343.79 = 56,099.96/x
  3. Step 3: Cross multiply
    87,934.46x = 121,343.79 × 56,099.96
  4. Step 4: Simplify right side
    87,934.46x = 6,807,381,765.25
  5. Step 5: Solve for x
    x = 6,807,381,765.25/87,934.46
  6. Step 6: Final answer
    x = 77,414.27

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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.