Home / 72,910.38-100,616.76-41,079.90

Finding the Fourth Proportional to 72,910.38, 100,616.76 and 41,079.90

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Solution

The fourth proportional to 72,910.38, 100,616.76 and 41,079.90 is: 56,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,910.38 : 100,616.76 = 41,079.90 : x
  2. Step 2: Convert to fraction form
    72,910.38/100,616.76 = 41,079.90/x
  3. Step 3: Cross multiply
    72,910.38x = 100,616.76 × 41,079.90
  4. Step 4: Simplify right side
    72,910.38x = 4,133,326,439.12
  5. Step 5: Solve for x
    x = 4,133,326,439.12/72,910.38
  6. Step 6: Final answer
    x = 56,690.51

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1.5x scale

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.