Home / 78,299.46-108,338.04-68,248.98

Finding the Fourth Proportional to 78,299.46, 108,338.04 and 68,248.98

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Solution

The fourth proportional to 78,299.46, 108,338.04 and 68,248.98 is: 94,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,299.46 : 108,338.04 = 68,248.98 : x
  2. Step 2: Convert to fraction form
    78,299.46/108,338.04 = 68,248.98/x
  3. Step 3: Cross multiply
    78,299.46x = 108,338.04 × 68,248.98
  4. Step 4: Simplify right side
    78,299.46x = 7,393,960,725.20
  5. Step 5: Solve for x
    x = 7,393,960,725.20/78,299.46
  6. Step 6: Final answer
    x = 94,431.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.