Home / 86,481.24-129,674.76-39,040.74

Finding the Fourth Proportional to 86,481.24, 129,674.76 and 39,040.74

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Solution

The fourth proportional to 86,481.24, 129,674.76 and 39,040.74 is: 58,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,481.24 : 129,674.76 = 39,040.74 : x
  2. Step 2: Convert to fraction form
    86,481.24/129,674.76 = 39,040.74/x
  3. Step 3: Cross multiply
    86,481.24x = 129,674.76 × 39,040.74
  4. Step 4: Simplify right side
    86,481.24x = 5,062,598,589.72
  5. Step 5: Solve for x
    x = 5,062,598,589.72/86,481.24
  6. Step 6: Final answer
    x = 58,539.85

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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.