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Finding the Fourth Proportional to 68,084.80, 101,932.80 and 52,403.20

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Solution

The fourth proportional to 68,084.80, 101,932.80 and 52,403.20 is: 78,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,084.80 : 101,932.80 = 52,403.20 : x
  2. Step 2: Convert to fraction form
    68,084.80/101,932.80 = 52,403.20/x
  3. Step 3: Cross multiply
    68,084.80x = 101,932.80 × 52,403.20
  4. Step 4: Simplify right side
    68,084.80x = 5,341,604,904.96
  5. Step 5: Solve for x
    x = 5,341,604,904.96/68,084.80
  6. Step 6: Final answer
    x = 78,455.18

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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.