Home / 68,439.39-102,691.58-47,411.79

Finding the Fourth Proportional to 68,439.39, 102,691.58 and 47,411.79

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Solution

The fourth proportional to 68,439.39, 102,691.58 and 47,411.79 is: 71,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,439.39 : 102,691.58 = 47,411.79 : x
  2. Step 2: Convert to fraction form
    68,439.39/102,691.58 = 47,411.79/x
  3. Step 3: Cross multiply
    68,439.39x = 102,691.58 × 47,411.79
  4. Step 4: Simplify right side
    68,439.39x = 4,868,791,388.67
  5. Step 5: Solve for x
    x = 4,868,791,388.67/68,439.39
  6. Step 6: Final answer
    x = 71,140.19

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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.