Home / 80,996.41-121,480.77-21,818.24

Finding the Fourth Proportional to 80,996.41, 121,480.77 and 21,818.24

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Solution

The fourth proportional to 80,996.41, 121,480.77 and 21,818.24 is: 32,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,996.41 : 121,480.77 = 21,818.24 : x
  2. Step 2: Convert to fraction form
    80,996.41/121,480.77 = 21,818.24/x
  3. Step 3: Cross multiply
    80,996.41x = 121,480.77 × 21,818.24
  4. Step 4: Simplify right side
    80,996.41x = 2,650,496,630.26
  5. Step 5: Solve for x
    x = 2,650,496,630.26/80,996.41
  6. Step 6: Final answer
    x = 32,723.63

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1.5x scale

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.