Home / 72,186.20-108,279.28-35,218.52

Finding the Fourth Proportional to 72,186.20, 108,279.28 and 35,218.52

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Solution

The fourth proportional to 72,186.20, 108,279.28 and 35,218.52 is: 52,827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,186.20 : 108,279.28 = 35,218.52 : x
  2. Step 2: Convert to fraction form
    72,186.20/108,279.28 = 35,218.52/x
  3. Step 3: Cross multiply
    72,186.20x = 108,279.28 × 35,218.52
  4. Step 4: Simplify right side
    72,186.20x = 3,813,435,988.27
  5. Step 5: Solve for x
    x = 3,813,435,988.27/72,186.20
  6. Step 6: Final answer
    x = 52,827.77

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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.