Home / 40,701.59-61,061.12-12,621.04

Finding the Fourth Proportional to 40,701.59, 61,061.12 and 12,621.04

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Solution

The fourth proportional to 40,701.59, 61,061.12 and 12,621.04 is: 18,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,701.59 : 61,061.12 = 12,621.04 : x
  2. Step 2: Convert to fraction form
    40,701.59/61,061.12 = 12,621.04/x
  3. Step 3: Cross multiply
    40,701.59x = 61,061.12 × 12,621.04
  4. Step 4: Simplify right side
    40,701.59x = 770,654,805.77
  5. Step 5: Solve for x
    x = 770,654,805.77/40,701.59
  6. Step 6: Final answer
    x = 18,934.27

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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.