Home / 86,542.18-129,871.26-30,382.46

Finding the Fourth Proportional to 86,542.18, 129,871.26 and 30,382.46

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Solution

The fourth proportional to 86,542.18, 129,871.26 and 30,382.46 is: 45,594.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,542.18 : 129,871.26 = 30,382.46 : x
  2. Step 2: Convert to fraction form
    86,542.18/129,871.26 = 30,382.46/x
  3. Step 3: Cross multiply
    86,542.18x = 129,871.26 × 30,382.46
  4. Step 4: Simplify right side
    86,542.18x = 3,945,807,560.83
  5. Step 5: Solve for x
    x = 3,945,807,560.83/86,542.18
  6. Step 6: Final answer
    x = 45,594.04

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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.