Home / 86,359.71-129,373.38-52,982.31

Finding the Fourth Proportional to 86,359.71, 129,373.38 and 52,982.31

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Solution

The fourth proportional to 86,359.71, 129,373.38 and 52,982.31 is: 79,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,359.71 : 129,373.38 = 52,982.31 : x
  2. Step 2: Convert to fraction form
    86,359.71/129,373.38 = 52,982.31/x
  3. Step 3: Cross multiply
    86,359.71x = 129,373.38 × 52,982.31
  4. Step 4: Simplify right side
    86,359.71x = 6,854,500,524.91
  5. Step 5: Solve for x
    x = 6,854,500,524.91/86,359.71
  6. Step 6: Final answer
    x = 79,371.51

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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.