Home / 48,198.57-72,172.09-38,787.18

Finding the Fourth Proportional to 48,198.57, 72,172.09 and 38,787.18

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Solution

The fourth proportional to 48,198.57, 72,172.09 and 38,787.18 is: 58,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,198.57 : 72,172.09 = 38,787.18 : x
  2. Step 2: Convert to fraction form
    48,198.57/72,172.09 = 38,787.18/x
  3. Step 3: Cross multiply
    48,198.57x = 72,172.09 × 38,787.18
  4. Step 4: Simplify right side
    48,198.57x = 2,799,351,484.95
  5. Step 5: Solve for x
    x = 2,799,351,484.95/48,198.57
  6. Step 6: Final answer
    x = 58,079.56

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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.