Home / 81,187.42-121,793.28-25,022.86

Finding the Fourth Proportional to 81,187.42, 121,793.28 and 25,022.86

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Solution

The fourth proportional to 81,187.42, 121,793.28 and 25,022.86 is: 37,538.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,187.42 : 121,793.28 = 25,022.86 : x
  2. Step 2: Convert to fraction form
    81,187.42/121,793.28 = 25,022.86/x
  3. Step 3: Cross multiply
    81,187.42x = 121,793.28 × 25,022.86
  4. Step 4: Simplify right side
    81,187.42x = 3,047,616,194.38
  5. Step 5: Solve for x
    x = 3,047,616,194.38/81,187.42
  6. Step 6: Final answer
    x = 37,538.03

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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.