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Finding the Fourth Proportional to 82,479.53, 123,781.49 and 60,350

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Solution

The fourth proportional to 82,479.53, 123,781.49 and 60,350 is: 90,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,479.53 : 123,781.49 = 60,350 : x
  2. Step 2: Convert to fraction form
    82,479.53/123,781.49 = 60,350/x
  3. Step 3: Cross multiply
    82,479.53x = 123,781.49 × 60,350
  4. Step 4: Simplify right side
    82,479.53x = 7,470,212,921.50
  5. Step 5: Solve for x
    x = 7,470,212,921.50/82,479.53
  6. Step 6: Final answer
    x = 90,570.51

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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.