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Finding the Fourth Proportional to 68,095.20, 102,111.60 and 36,500.40

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Solution

The fourth proportional to 68,095.20, 102,111.60 and 36,500.40 is: 54,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,095.20 : 102,111.60 = 36,500.40 : x
  2. Step 2: Convert to fraction form
    68,095.20/102,111.60 = 36,500.40/x
  3. Step 3: Cross multiply
    68,095.20x = 102,111.60 × 36,500.40
  4. Step 4: Simplify right side
    68,095.20x = 3,727,114,244.64
  5. Step 5: Solve for x
    x = 3,727,114,244.64/68,095.20
  6. Step 6: Final answer
    x = 54,733.88

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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.