Home / 54,960.72-75,843.50-31,087.79

Finding the Fourth Proportional to 54,960.72, 75,843.50 and 31,087.79

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Solution

The fourth proportional to 54,960.72, 75,843.50 and 31,087.79 is: 42,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,960.72 : 75,843.50 = 31,087.79 : x
  2. Step 2: Convert to fraction form
    54,960.72/75,843.50 = 31,087.79/x
  3. Step 3: Cross multiply
    54,960.72x = 75,843.50 × 31,087.79
  4. Step 4: Simplify right side
    54,960.72x = 2,357,806,800.87
  5. Step 5: Solve for x
    x = 2,357,806,800.87/54,960.72
  6. Step 6: Final answer
    x = 42,899.85

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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.