Home / 81,247.90-121,883.40-25,092.58

Finding the Fourth Proportional to 81,247.90, 121,883.40 and 25,092.58

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Solution

The fourth proportional to 81,247.90, 121,883.40 and 25,092.58 is: 37,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,247.90 : 121,883.40 = 25,092.58 : x
  2. Step 2: Convert to fraction form
    81,247.90/121,883.40 = 25,092.58/x
  3. Step 3: Cross multiply
    81,247.90x = 121,883.40 × 25,092.58
  4. Step 4: Simplify right side
    81,247.90x = 3,058,368,965.17
  5. Step 5: Solve for x
    x = 3,058,368,965.17/81,247.90
  6. Step 6: Final answer
    x = 37,642.44

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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.