Home / 52,003.05-71,764.20-28,129.70

Finding the Fourth Proportional to 52,003.05, 71,764.20 and 28,129.70

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Solution

The fourth proportional to 52,003.05, 71,764.20 and 28,129.70 is: 38,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,003.05 : 71,764.20 = 28,129.70 : x
  2. Step 2: Convert to fraction form
    52,003.05/71,764.20 = 28,129.70/x
  3. Step 3: Cross multiply
    52,003.05x = 71,764.20 × 28,129.70
  4. Step 4: Simplify right side
    52,003.05x = 2,018,705,057.92
  5. Step 5: Solve for x
    x = 2,018,705,057.92/52,003.05
  6. Step 6: Final answer
    x = 38,818.97

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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.