Home / 87,245.17-130,932.89-64,807.65

Finding the Fourth Proportional to 87,245.17, 130,932.89 and 64,807.65

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Solution

The fourth proportional to 87,245.17, 130,932.89 and 64,807.65 is: 97,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,245.17 : 130,932.89 = 64,807.65 : x
  2. Step 2: Convert to fraction form
    87,245.17/130,932.89 = 64,807.65/x
  3. Step 3: Cross multiply
    87,245.17x = 130,932.89 × 64,807.65
  4. Step 4: Simplify right side
    87,245.17x = 8,485,452,584.57
  5. Step 5: Solve for x
    x = 8,485,452,584.57/87,245.17
  6. Step 6: Final answer
    x = 97,259.86

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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.