Home / 87,257.42-130,780.29-39,807.48

Finding the Fourth Proportional to 87,257.42, 130,780.29 and 39,807.48

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Solution

The fourth proportional to 87,257.42, 130,780.29 and 39,807.48 is: 59,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,257.42 : 130,780.29 = 39,807.48 : x
  2. Step 2: Convert to fraction form
    87,257.42/130,780.29 = 39,807.48/x
  3. Step 3: Cross multiply
    87,257.42x = 130,780.29 × 39,807.48
  4. Step 4: Simplify right side
    87,257.42x = 5,206,033,778.57
  5. Step 5: Solve for x
    x = 5,206,033,778.57/87,257.42
  6. Step 6: Final answer
    x = 59,662.94

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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.