Home / 87,238.89-130,752.77-39,789.02

Finding the Fourth Proportional to 87,238.89, 130,752.77 and 39,789.02

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Solution

The fourth proportional to 87,238.89, 130,752.77 and 39,789.02 is: 59,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,238.89 : 130,752.77 = 39,789.02 : x
  2. Step 2: Convert to fraction form
    87,238.89/130,752.77 = 39,789.02/x
  3. Step 3: Cross multiply
    87,238.89x = 130,752.77 × 39,789.02
  4. Step 4: Simplify right side
    87,238.89x = 5,202,524,708.52
  5. Step 5: Solve for x
    x = 5,202,524,708.52/87,238.89
  6. Step 6: Final answer
    x = 59,635.38

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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.