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Finding the Fourth Proportional to 68,337.10, 102,520.05 and 28,873.90

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Solution

The fourth proportional to 68,337.10, 102,520.05 and 28,873.90 is: 43,316.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,337.10 : 102,520.05 = 28,873.90 : x
  2. Step 2: Convert to fraction form
    68,337.10/102,520.05 = 28,873.90/x
  3. Step 3: Cross multiply
    68,337.10x = 102,520.05 × 28,873.90
  4. Step 4: Simplify right side
    68,337.10x = 2,960,153,671.70
  5. Step 5: Solve for x
    x = 2,960,153,671.70/68,337.10
  6. Step 6: Final answer
    x = 43,316.93

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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.