Home / 87,151.20-130,726.80-34,533.60

Finding the Fourth Proportional to 87,151.20, 130,726.80 and 34,533.60

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Solution

The fourth proportional to 87,151.20, 130,726.80 and 34,533.60 is: 51,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,151.20 : 130,726.80 = 34,533.60 : x
  2. Step 2: Convert to fraction form
    87,151.20/130,726.80 = 34,533.60/x
  3. Step 3: Cross multiply
    87,151.20x = 130,726.80 × 34,533.60
  4. Step 4: Simplify right side
    87,151.20x = 4,514,467,020.48
  5. Step 5: Solve for x
    x = 4,514,467,020.48/87,151.20
  6. Step 6: Final answer
    x = 51,800.40

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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.