Home / 81,157.07-121,747.12-25,001.73

Finding the Fourth Proportional to 81,157.07, 121,747.12 and 25,001.73

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Solution

The fourth proportional to 81,157.07, 121,747.12 and 25,001.73 is: 37,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157.07 : 121,747.12 = 25,001.73 : x
  2. Step 2: Convert to fraction form
    81,157.07/121,747.12 = 25,001.73/x
  3. Step 3: Cross multiply
    81,157.07x = 121,747.12 × 25,001.73
  4. Step 4: Simplify right side
    81,157.07x = 3,043,888,560.01
  5. Step 5: Solve for x
    x = 3,043,888,560.01/81,157.07
  6. Step 6: Final answer
    x = 37,506.14

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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.