Home / 87,105.52-130,658.34-57,516.40

Finding the Fourth Proportional to 87,105.52, 130,658.34 and 57,516.40

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Solution

The fourth proportional to 87,105.52, 130,658.34 and 57,516.40 is: 86,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,105.52 : 130,658.34 = 57,516.40 : x
  2. Step 2: Convert to fraction form
    87,105.52/130,658.34 = 57,516.40/x
  3. Step 3: Cross multiply
    87,105.52x = 130,658.34 × 57,516.40
  4. Step 4: Simplify right side
    87,105.52x = 7,514,997,346.78
  5. Step 5: Solve for x
    x = 7,514,997,346.78/87,105.52
  6. Step 6: Final answer
    x = 86,274.64

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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.