Home / 48,642.58-72,957.39-13,585.78

Finding the Fourth Proportional to 48,642.58, 72,957.39 and 13,585.78

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Solution

The fourth proportional to 48,642.58, 72,957.39 and 13,585.78 is: 20,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,642.58 : 72,957.39 = 13,585.78 : x
  2. Step 2: Convert to fraction form
    48,642.58/72,957.39 = 13,585.78/x
  3. Step 3: Cross multiply
    48,642.58x = 72,957.39 × 13,585.78
  4. Step 4: Simplify right side
    48,642.58x = 991,183,049.91
  5. Step 5: Solve for x
    x = 991,183,049.91/48,642.58
  6. Step 6: Final answer
    x = 20,376.86

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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.