Home / 55,765.29-76,934.19-31,879.17

Finding the Fourth Proportional to 55,765.29, 76,934.19 and 31,879.17

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Solution

The fourth proportional to 55,765.29, 76,934.19 and 31,879.17 is: 43,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,765.29 : 76,934.19 = 31,879.17 : x
  2. Step 2: Convert to fraction form
    55,765.29/76,934.19 = 31,879.17/x
  3. Step 3: Cross multiply
    55,765.29x = 76,934.19 × 31,879.17
  4. Step 4: Simplify right side
    55,765.29x = 2,452,598,121.82
  5. Step 5: Solve for x
    x = 2,452,598,121.82/55,765.29
  6. Step 6: Final answer
    x = 43,980.73

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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.