Home / 52,472.58-78,721.18-20,884.56

Finding the Fourth Proportional to 52,472.58, 78,721.18 and 20,884.56

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Solution

The fourth proportional to 52,472.58, 78,721.18 and 20,884.56 is: 31,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,472.58 : 78,721.18 = 20,884.56 : x
  2. Step 2: Convert to fraction form
    52,472.58/78,721.18 = 20,884.56/x
  3. Step 3: Cross multiply
    52,472.58x = 78,721.18 × 20,884.56
  4. Step 4: Simplify right side
    52,472.58x = 1,644,056,708.95
  5. Step 5: Solve for x
    x = 1,644,056,708.95/52,472.58
  6. Step 6: Final answer
    x = 31,331.73

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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.