Home / 51,979.20-77,859.45-43,231.20

Finding the Fourth Proportional to 51,979.20, 77,859.45 and 43,231.20

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Solution

The fourth proportional to 51,979.20, 77,859.45 and 43,231.20 is: 64,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.20 : 77,859.45 = 43,231.20 : x
  2. Step 2: Convert to fraction form
    51,979.20/77,859.45 = 43,231.20/x
  3. Step 3: Cross multiply
    51,979.20x = 77,859.45 × 43,231.20
  4. Step 4: Simplify right side
    51,979.20x = 3,365,957,454.84
  5. Step 5: Solve for x
    x = 3,365,957,454.84/51,979.20
  6. Step 6: Final answer
    x = 64,755.85

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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.