Home / 72,204.91-99,645.05-40,373.73

Finding the Fourth Proportional to 72,204.91, 99,645.05 and 40,373.73

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Solution

The fourth proportional to 72,204.91, 99,645.05 and 40,373.73 is: 55,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,204.91 : 99,645.05 = 40,373.73 : x
  2. Step 2: Convert to fraction form
    72,204.91/99,645.05 = 40,373.73/x
  3. Step 3: Cross multiply
    72,204.91x = 99,645.05 × 40,373.73
  4. Step 4: Simplify right side
    72,204.91x = 4,023,042,344.54
  5. Step 5: Solve for x
    x = 4,023,042,344.54/72,204.91
  6. Step 6: Final answer
    x = 55,717.02

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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.