Home / 81,051.24-121,576.86-34,304.52

Finding the Fourth Proportional to 81,051.24, 121,576.86 and 34,304.52

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Solution

The fourth proportional to 81,051.24, 121,576.86 and 34,304.52 is: 51,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,051.24 : 121,576.86 = 34,304.52 : x
  2. Step 2: Convert to fraction form
    81,051.24/121,576.86 = 34,304.52/x
  3. Step 3: Cross multiply
    81,051.24x = 121,576.86 × 34,304.52
  4. Step 4: Simplify right side
    81,051.24x = 4,170,635,825.41
  5. Step 5: Solve for x
    x = 4,170,635,825.41/81,051.24
  6. Step 6: Final answer
    x = 51,456.78

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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.