Home / 68,651.28-102,987.45-29,197.80

Finding the Fourth Proportional to 68,651.28, 102,987.45 and 29,197.80

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Solution

The fourth proportional to 68,651.28, 102,987.45 and 29,197.80 is: 43,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.28 : 102,987.45 = 29,197.80 : x
  2. Step 2: Convert to fraction form
    68,651.28/102,987.45 = 29,197.80/x
  3. Step 3: Cross multiply
    68,651.28x = 102,987.45 × 29,197.80
  4. Step 4: Simplify right side
    68,651.28x = 3,007,006,967.61
  5. Step 5: Solve for x
    x = 3,007,006,967.61/68,651.28
  6. Step 6: Final answer
    x = 43,801.18

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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.