Home / 80,386.33-120,548.59-38,233.93

Finding the Fourth Proportional to 80,386.33, 120,548.59 and 38,233.93

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Solution

The fourth proportional to 80,386.33, 120,548.59 and 38,233.93 is: 57,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,386.33 : 120,548.59 = 38,233.93 : x
  2. Step 2: Convert to fraction form
    80,386.33/120,548.59 = 38,233.93/x
  3. Step 3: Cross multiply
    80,386.33x = 120,548.59 × 38,233.93
  4. Step 4: Simplify right side
    80,386.33x = 4,609,046,351.66
  5. Step 5: Solve for x
    x = 4,609,046,351.66/80,386.33
  6. Step 6: Final answer
    x = 57,336.20

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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.