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Finding the Fourth Proportional to 76,170.04, 114,253.86 and 20,766.04

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Solution

The fourth proportional to 76,170.04, 114,253.86 and 20,766.04 is: 31,148.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,170.04 : 114,253.86 = 20,766.04 : x
  2. Step 2: Convert to fraction form
    76,170.04/114,253.86 = 20,766.04/x
  3. Step 3: Cross multiply
    76,170.04x = 114,253.86 × 20,766.04
  4. Step 4: Simplify right side
    76,170.04x = 2,372,600,226.91
  5. Step 5: Solve for x
    x = 2,372,600,226.91/76,170.04
  6. Step 6: Final answer
    x = 31,148.73

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1.5x scale

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.