Home / 80,906.28-121,359.30-21,741.95

Finding the Fourth Proportional to 80,906.28, 121,359.30 and 21,741.95

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Solution

The fourth proportional to 80,906.28, 121,359.30 and 21,741.95 is: 32,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,906.28 : 121,359.30 = 21,741.95 : x
  2. Step 2: Convert to fraction form
    80,906.28/121,359.30 = 21,741.95/x
  3. Step 3: Cross multiply
    80,906.28x = 121,359.30 × 21,741.95
  4. Step 4: Simplify right side
    80,906.28x = 2,638,587,225.84
  5. Step 5: Solve for x
    x = 2,638,587,225.84/80,906.28
  6. Step 6: Final answer
    x = 32,612.89

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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.