Home / 81,354.81-122,036.55-25,233.69

Finding the Fourth Proportional to 81,354.81, 122,036.55 and 25,233.69

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Solution

The fourth proportional to 81,354.81, 122,036.55 and 25,233.69 is: 37,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,354.81 : 122,036.55 = 25,233.69 : x
  2. Step 2: Convert to fraction form
    81,354.81/122,036.55 = 25,233.69/x
  3. Step 3: Cross multiply
    81,354.81x = 122,036.55 × 25,233.69
  4. Step 4: Simplify right side
    81,354.81x = 3,079,432,471.37
  5. Step 5: Solve for x
    x = 3,079,432,471.37/81,354.81
  6. Step 6: Final answer
    x = 37,851.88

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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.