Home / 77,286.72-106,655.52-43,755.84

Finding the Fourth Proportional to 77,286.72, 106,655.52 and 43,755.84

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Solution

The fourth proportional to 77,286.72, 106,655.52 and 43,755.84 is: 60,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,286.72 : 106,655.52 = 43,755.84 : x
  2. Step 2: Convert to fraction form
    77,286.72/106,655.52 = 43,755.84/x
  3. Step 3: Cross multiply
    77,286.72x = 106,655.52 × 43,755.84
  4. Step 4: Simplify right side
    77,286.72x = 4,666,801,868.24
  5. Step 5: Solve for x
    x = 4,666,801,868.24/77,286.72
  6. Step 6: Final answer
    x = 60,382.97

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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.