Home / 81,347.56-121,988.46-25,174.48

Finding the Fourth Proportional to 81,347.56, 121,988.46 and 25,174.48

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Solution

The fourth proportional to 81,347.56, 121,988.46 and 25,174.48 is: 37,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,347.56 : 121,988.46 = 25,174.48 : x
  2. Step 2: Convert to fraction form
    81,347.56/121,988.46 = 25,174.48/x
  3. Step 3: Cross multiply
    81,347.56x = 121,988.46 × 25,174.48
  4. Step 4: Simplify right side
    81,347.56x = 3,070,996,046.50
  5. Step 5: Solve for x
    x = 3,070,996,046.50/81,347.56
  6. Step 6: Final answer
    x = 37,751.54

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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.