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Finding the Fourth Proportional to 68,468.80, 102,498.40 and 60,276.80

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Solution

The fourth proportional to 68,468.80, 102,498.40 and 60,276.80 is: 90,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,468.80 : 102,498.40 = 60,276.80 : x
  2. Step 2: Convert to fraction form
    68,468.80/102,498.40 = 60,276.80/x
  3. Step 3: Cross multiply
    68,468.80x = 102,498.40 × 60,276.80
  4. Step 4: Simplify right side
    68,468.80x = 6,178,275,557.12
  5. Step 5: Solve for x
    x = 6,178,275,557.12/68,468.80
  6. Step 6: Final answer
    x = 90,234.90

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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.