Home / 80,835.57-121,170.47-36,493.47

Finding the Fourth Proportional to 80,835.57, 121,170.47 and 36,493.47

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Solution

The fourth proportional to 80,835.57, 121,170.47 and 36,493.47 is: 54,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,835.57 : 121,170.47 = 36,493.47 : x
  2. Step 2: Convert to fraction form
    80,835.57/121,170.47 = 36,493.47/x
  3. Step 3: Cross multiply
    80,835.57x = 121,170.47 × 36,493.47
  4. Step 4: Simplify right side
    80,835.57x = 4,421,930,729.36
  5. Step 5: Solve for x
    x = 4,421,930,729.36/80,835.57
  6. Step 6: Final answer
    x = 54,702.78

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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.