Home / 55,853.82-77,081.76-31,979.88

Finding the Fourth Proportional to 55,853.82, 77,081.76 and 31,979.88

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Solution

The fourth proportional to 55,853.82, 77,081.76 and 31,979.88 is: 44,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,853.82 : 77,081.76 = 31,979.88 : x
  2. Step 2: Convert to fraction form
    55,853.82/77,081.76 = 31,979.88/x
  3. Step 3: Cross multiply
    55,853.82x = 77,081.76 × 31,979.88
  4. Step 4: Simplify right side
    55,853.82x = 2,465,065,434.99
  5. Step 5: Solve for x
    x = 2,465,065,434.99/55,853.82
  6. Step 6: Final answer
    x = 44,134.23

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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.