Home / 87,125.04-130,516.32-57,452.40

Finding the Fourth Proportional to 87,125.04, 130,516.32 and 57,452.40

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Solution

The fourth proportional to 87,125.04, 130,516.32 and 57,452.40 is: 86,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,125.04 : 130,516.32 = 57,452.40 : x
  2. Step 2: Convert to fraction form
    87,125.04/130,516.32 = 57,452.40/x
  3. Step 3: Cross multiply
    87,125.04x = 130,516.32 × 57,452.40
  4. Step 4: Simplify right side
    87,125.04x = 7,498,475,823.17
  5. Step 5: Solve for x
    x = 7,498,475,823.17/87,125.04
  6. Step 6: Final answer
    x = 86,065.68

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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.