Home / 72,141.35-108,236.62-38,864.82

Finding the Fourth Proportional to 72,141.35, 108,236.62 and 38,864.82

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Solution

The fourth proportional to 72,141.35, 108,236.62 and 38,864.82 is: 58,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,141.35 : 108,236.62 = 38,864.82 : x
  2. Step 2: Convert to fraction form
    72,141.35/108,236.62 = 38,864.82/x
  3. Step 3: Cross multiply
    72,141.35x = 108,236.62 × 38,864.82
  4. Step 4: Simplify right side
    72,141.35x = 4,206,597,208.18
  5. Step 5: Solve for x
    x = 4,206,597,208.18/72,141.35
  6. Step 6: Final answer
    x = 58,310.49

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1.5x scale

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.