Home / 48,123.68-72,151.23-18,516.56

Finding the Fourth Proportional to 48,123.68, 72,151.23 and 18,516.56

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Solution

The fourth proportional to 48,123.68, 72,151.23 and 18,516.56 is: 27,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,123.68 : 72,151.23 = 18,516.56 : x
  2. Step 2: Convert to fraction form
    48,123.68/72,151.23 = 18,516.56/x
  3. Step 3: Cross multiply
    48,123.68x = 72,151.23 × 18,516.56
  4. Step 4: Simplify right side
    48,123.68x = 1,335,992,579.37
  5. Step 5: Solve for x
    x = 1,335,992,579.37/48,123.68
  6. Step 6: Final answer
    x = 27,761.65

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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.