Home / 55,691.19-76,852.89-31,491.75

Finding the Fourth Proportional to 55,691.19, 76,852.89 and 31,491.75

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Solution

The fourth proportional to 55,691.19, 76,852.89 and 31,491.75 is: 43,458.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691.19 : 76,852.89 = 31,491.75 : x
  2. Step 2: Convert to fraction form
    55,691.19/76,852.89 = 31,491.75/x
  3. Step 3: Cross multiply
    55,691.19x = 76,852.89 × 31,491.75
  4. Step 4: Simplify right side
    55,691.19x = 2,420,231,998.66
  5. Step 5: Solve for x
    x = 2,420,231,998.66/55,691.19
  6. Step 6: Final answer
    x = 43,458.08

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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.