Home / 40,876.20-61,306.56-12,792.02

Finding the Fourth Proportional to 40,876.20, 61,306.56 and 12,792.02

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Solution

The fourth proportional to 40,876.20, 61,306.56 and 12,792.02 is: 19,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,876.20 : 61,306.56 = 12,792.02 : x
  2. Step 2: Convert to fraction form
    40,876.20/61,306.56 = 12,792.02/x
  3. Step 3: Cross multiply
    40,876.20x = 61,306.56 × 12,792.02
  4. Step 4: Simplify right side
    40,876.20x = 784,234,435.12
  5. Step 5: Solve for x
    x = 784,234,435.12/40,876.20
  6. Step 6: Final answer
    x = 19,185.60

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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.