Home / 71,387.20-98,512.86-39,555.82

Finding the Fourth Proportional to 71,387.20, 98,512.86 and 39,555.82

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Solution

The fourth proportional to 71,387.20, 98,512.86 and 39,555.82 is: 54,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,387.20 : 98,512.86 = 39,555.82 : x
  2. Step 2: Convert to fraction form
    71,387.20/98,512.86 = 39,555.82/x
  3. Step 3: Cross multiply
    71,387.20x = 98,512.86 × 39,555.82
  4. Step 4: Simplify right side
    71,387.20x = 3,896,756,711.56
  5. Step 5: Solve for x
    x = 3,896,756,711.56/71,387.20
  6. Step 6: Final answer
    x = 54,586.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.