Home / 81,393.48-122,109.24-25,230.66

Finding the Fourth Proportional to 81,393.48, 122,109.24 and 25,230.66

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Solution

The fourth proportional to 81,393.48, 122,109.24 and 25,230.66 is: 37,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,393.48 : 122,109.24 = 25,230.66 : x
  2. Step 2: Convert to fraction form
    81,393.48/122,109.24 = 25,230.66/x
  3. Step 3: Cross multiply
    81,393.48x = 122,109.24 × 25,230.66
  4. Step 4: Simplify right side
    81,393.48x = 3,080,896,717.30
  5. Step 5: Solve for x
    x = 3,080,896,717.30/81,393.48
  6. Step 6: Final answer
    x = 37,851.89

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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.