Home / 87,719.28-131,462.28-75,977.52

Finding the Fourth Proportional to 87,719.28, 131,462.28 and 75,977.52

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Solution

The fourth proportional to 87,719.28, 131,462.28 and 75,977.52 is: 113,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,719.28 : 131,462.28 = 75,977.52 : x
  2. Step 2: Convert to fraction form
    87,719.28/131,462.28 = 75,977.52/x
  3. Step 3: Cross multiply
    87,719.28x = 131,462.28 × 75,977.52
  4. Step 4: Simplify right side
    87,719.28x = 9,988,178,007.95
  5. Step 5: Solve for x
    x = 9,988,178,007.95/87,719.28
  6. Step 6: Final answer
    x = 113,865.25

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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.