Home / 81,177.67-121,778.64-25,013.08

Finding the Fourth Proportional to 81,177.67, 121,778.64 and 25,013.08

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Solution

The fourth proportional to 81,177.67, 121,778.64 and 25,013.08 is: 37,523.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177.67 : 121,778.64 = 25,013.08 : x
  2. Step 2: Convert to fraction form
    81,177.67/121,778.64 = 25,013.08/x
  3. Step 3: Cross multiply
    81,177.67x = 121,778.64 × 25,013.08
  4. Step 4: Simplify right side
    81,177.67x = 3,046,058,864.61
  5. Step 5: Solve for x
    x = 3,046,058,864.61/81,177.67
  6. Step 6: Final answer
    x = 37,523.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.