Home / 48,082.20-72,123.29-20,001.72

Finding the Fourth Proportional to 48,082.20, 72,123.29 and 20,001.72

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Solution

The fourth proportional to 48,082.20, 72,123.29 and 20,001.72 is: 30,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,082.20 : 72,123.29 = 20,001.72 : x
  2. Step 2: Convert to fraction form
    48,082.20/72,123.29 = 20,001.72/x
  3. Step 3: Cross multiply
    48,082.20x = 72,123.29 × 20,001.72
  4. Step 4: Simplify right side
    48,082.20x = 1,442,589,852.06
  5. Step 5: Solve for x
    x = 1,442,589,852.06/48,082.20
  6. Step 6: Final answer
    x = 30,002.58

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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.