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Finding the Fourth Proportional to 68,664.32, 103,000.80 and 24,286.40

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Solution

The fourth proportional to 68,664.32, 103,000.80 and 24,286.40 is: 36,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,664.32 : 103,000.80 = 24,286.40 : x
  2. Step 2: Convert to fraction form
    68,664.32/103,000.80 = 24,286.40/x
  3. Step 3: Cross multiply
    68,664.32x = 103,000.80 × 24,286.40
  4. Step 4: Simplify right side
    68,664.32x = 2,501,518,629.12
  5. Step 5: Solve for x
    x = 2,501,518,629.12/68,664.32
  6. Step 6: Final answer
    x = 36,431.13

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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.