Home / 68,619.60-102,929.40-27,061.20

Finding the Fourth Proportional to 68,619.60, 102,929.40 and 27,061.20

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Solution

The fourth proportional to 68,619.60, 102,929.40 and 27,061.20 is: 40,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.60 : 102,929.40 = 27,061.20 : x
  2. Step 2: Convert to fraction form
    68,619.60/102,929.40 = 27,061.20/x
  3. Step 3: Cross multiply
    68,619.60x = 102,929.40 × 27,061.20
  4. Step 4: Simplify right side
    68,619.60x = 2,785,393,079.28
  5. Step 5: Solve for x
    x = 2,785,393,079.28/68,619.60
  6. Step 6: Final answer
    x = 40,591.80

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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.