Home / 50,029.92-75,045-20,057.76

Finding the Fourth Proportional to 50,029.92, 75,045 and 20,057.76

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Solution

The fourth proportional to 50,029.92, 75,045 and 20,057.76 is: 30,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,029.92 : 75,045 = 20,057.76 : x
  2. Step 2: Convert to fraction form
    50,029.92/75,045 = 20,057.76/x
  3. Step 3: Cross multiply
    50,029.92x = 75,045 × 20,057.76
  4. Step 4: Simplify right side
    50,029.92x = 1,505,234,599.20
  5. Step 5: Solve for x
    x = 1,505,234,599.20/50,029.92
  6. Step 6: Final answer
    x = 30,086.69

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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.