Home / 68,439.04-102,674.82-21,691.92

Finding the Fourth Proportional to 68,439.04, 102,674.82 and 21,691.92

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Solution

The fourth proportional to 68,439.04, 102,674.82 and 21,691.92 is: 32,543.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,439.04 : 102,674.82 = 21,691.92 : x
  2. Step 2: Convert to fraction form
    68,439.04/102,674.82 = 21,691.92/x
  3. Step 3: Cross multiply
    68,439.04x = 102,674.82 × 21,691.92
  4. Step 4: Simplify right side
    68,439.04x = 2,227,213,981.45
  5. Step 5: Solve for x
    x = 2,227,213,981.45/68,439.04
  6. Step 6: Final answer
    x = 32,543.03

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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.