Home / 83,521.56-125,289.60-21,192

Finding the Fourth Proportional to 83,521.56, 125,289.60 and 21,192

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Solution

The fourth proportional to 83,521.56, 125,289.60 and 21,192 is: 31,789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,521.56 : 125,289.60 = 21,192 : x
  2. Step 2: Convert to fraction form
    83,521.56/125,289.60 = 21,192/x
  3. Step 3: Cross multiply
    83,521.56x = 125,289.60 × 21,192
  4. Step 4: Simplify right side
    83,521.56x = 2,655,137,203.20
  5. Step 5: Solve for x
    x = 2,655,137,203.20/83,521.56
  6. Step 6: Final answer
    x = 31,789.84

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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.