Home / 78,476.08-108,306.84-50,171.44

Finding the Fourth Proportional to 78,476.08, 108,306.84 and 50,171.44

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Solution

The fourth proportional to 78,476.08, 108,306.84 and 50,171.44 is: 69,242.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,476.08 : 108,306.84 = 50,171.44 : x
  2. Step 2: Convert to fraction form
    78,476.08/108,306.84 = 50,171.44/x
  3. Step 3: Cross multiply
    78,476.08x = 108,306.84 × 50,171.44
  4. Step 4: Simplify right side
    78,476.08x = 5,433,910,124.65
  5. Step 5: Solve for x
    x = 5,433,910,124.65/78,476.08
  6. Step 6: Final answer
    x = 69,242.88

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1.5x scale

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.