Home / 87,140.52-130,456.86-64,750.44

Finding the Fourth Proportional to 87,140.52, 130,456.86 and 64,750.44

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Solution

The fourth proportional to 87,140.52, 130,456.86 and 64,750.44 is: 96,936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,140.52 : 130,456.86 = 64,750.44 : x
  2. Step 2: Convert to fraction form
    87,140.52/130,456.86 = 64,750.44/x
  3. Step 3: Cross multiply
    87,140.52x = 130,456.86 × 64,750.44
  4. Step 4: Simplify right side
    87,140.52x = 8,447,139,086.02
  5. Step 5: Solve for x
    x = 8,447,139,086.02/87,140.52
  6. Step 6: Final answer
    x = 96,936.98

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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.