Home / 86,217.52-129,340.86-39,474.04

Finding the Fourth Proportional to 86,217.52, 129,340.86 and 39,474.04

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Solution

The fourth proportional to 86,217.52, 129,340.86 and 39,474.04 is: 59,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.52 : 129,340.86 = 39,474.04 : x
  2. Step 2: Convert to fraction form
    86,217.52/129,340.86 = 39,474.04/x
  3. Step 3: Cross multiply
    86,217.52x = 129,340.86 × 39,474.04
  4. Step 4: Simplify right side
    86,217.52x = 5,105,606,281.27
  5. Step 5: Solve for x
    x = 5,105,606,281.27/86,217.52
  6. Step 6: Final answer
    x = 59,217.74

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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.