Home / 215,793.90-323,729.76-66,031.38

Finding the Fourth Proportional to 215,793.90, 323,729.76 and 66,031.38

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Solution

The fourth proportional to 215,793.90, 323,729.76 and 66,031.38 is: 99,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,793.90 : 323,729.76 = 66,031.38 : x
  2. Step 2: Convert to fraction form
    215,793.90/323,729.76 = 66,031.38/x
  3. Step 3: Cross multiply
    215,793.90x = 323,729.76 × 66,031.38
  4. Step 4: Simplify right side
    215,793.90x = 21,376,322,799.87
  5. Step 5: Solve for x
    x = 21,376,322,799.87/215,793.90
  6. Step 6: Final answer
    x = 99,058.98

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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.