Home / 52,974.11-73,086.42-30,000.78

Finding the Fourth Proportional to 52,974.11, 73,086.42 and 30,000.78

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Solution

The fourth proportional to 52,974.11, 73,086.42 and 30,000.78 is: 41,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,974.11 : 73,086.42 = 30,000.78 : x
  2. Step 2: Convert to fraction form
    52,974.11/73,086.42 = 30,000.78/x
  3. Step 3: Cross multiply
    52,974.11x = 73,086.42 × 30,000.78
  4. Step 4: Simplify right side
    52,974.11x = 2,192,649,607.41
  5. Step 5: Solve for x
    x = 2,192,649,607.41/52,974.11
  6. Step 6: Final answer
    x = 41,390.97

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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.