Home / 87,643.28-131,498.04-52,607.36

Finding the Fourth Proportional to 87,643.28, 131,498.04 and 52,607.36

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Solution

The fourth proportional to 87,643.28, 131,498.04 and 52,607.36 is: 78,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,643.28 : 131,498.04 = 52,607.36 : x
  2. Step 2: Convert to fraction form
    87,643.28/131,498.04 = 52,607.36/x
  3. Step 3: Cross multiply
    87,643.28x = 131,498.04 × 52,607.36
  4. Step 4: Simplify right side
    87,643.28x = 6,917,764,729.57
  5. Step 5: Solve for x
    x = 6,917,764,729.57/87,643.28
  6. Step 6: Final answer
    x = 78,930.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.