Home / 72,542.45-100,150.25-48,337.03

Finding the Fourth Proportional to 72,542.45, 100,150.25 and 48,337.03

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Solution

The fourth proportional to 72,542.45, 100,150.25 and 48,337.03 is: 66,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,542.45 : 100,150.25 = 48,337.03 : x
  2. Step 2: Convert to fraction form
    72,542.45/100,150.25 = 48,337.03/x
  3. Step 3: Cross multiply
    72,542.45x = 100,150.25 × 48,337.03
  4. Step 4: Simplify right side
    72,542.45x = 4,840,965,376.54
  5. Step 5: Solve for x
    x = 4,840,965,376.54/72,542.45
  6. Step 6: Final answer
    x = 66,732.86

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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.