Home / 48,418.12-72,631.37-13,357.78

Finding the Fourth Proportional to 48,418.12, 72,631.37 and 13,357.78

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Solution

The fourth proportional to 48,418.12, 72,631.37 and 13,357.78 is: 20,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,418.12 : 72,631.37 = 13,357.78 : x
  2. Step 2: Convert to fraction form
    48,418.12/72,631.37 = 13,357.78/x
  3. Step 3: Cross multiply
    48,418.12x = 72,631.37 × 13,357.78
  4. Step 4: Simplify right side
    48,418.12x = 970,193,638.24
  5. Step 5: Solve for x
    x = 970,193,638.24/48,418.12
  6. Step 6: Final answer
    x = 20,037.82

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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.