Home / 87,569.64-131,548.86-54,314.28

Finding the Fourth Proportional to 87,569.64, 131,548.86 and 54,314.28

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Solution

The fourth proportional to 87,569.64, 131,548.86 and 54,314.28 is: 81,591.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.64 : 131,548.86 = 54,314.28 : x
  2. Step 2: Convert to fraction form
    87,569.64/131,548.86 = 54,314.28/x
  3. Step 3: Cross multiply
    87,569.64x = 131,548.86 × 54,314.28
  4. Step 4: Simplify right side
    87,569.64x = 7,144,981,615.72
  5. Step 5: Solve for x
    x = 7,144,981,615.72/87,569.64
  6. Step 6: Final answer
    x = 81,591.99

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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.