Home / 68,490.50-102,738.65-23,542.79

Finding the Fourth Proportional to 68,490.50, 102,738.65 and 23,542.79

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Solution

The fourth proportional to 68,490.50, 102,738.65 and 23,542.79 is: 35,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.50 : 102,738.65 = 23,542.79 : x
  2. Step 2: Convert to fraction form
    68,490.50/102,738.65 = 23,542.79/x
  3. Step 3: Cross multiply
    68,490.50x = 102,738.65 × 23,542.79
  4. Step 4: Simplify right side
    68,490.50x = 2,418,753,830.43
  5. Step 5: Solve for x
    x = 2,418,753,830.43/68,490.50
  6. Step 6: Final answer
    x = 35,315.18

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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.