Home / 80,573.28-120,841.70-30,635.57

Finding the Fourth Proportional to 80,573.28, 120,841.70 and 30,635.57

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Solution

The fourth proportional to 80,573.28, 120,841.70 and 30,635.57 is: 45,946.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,573.28 : 120,841.70 = 30,635.57 : x
  2. Step 2: Convert to fraction form
    80,573.28/120,841.70 = 30,635.57/x
  3. Step 3: Cross multiply
    80,573.28x = 120,841.70 × 30,635.57
  4. Step 4: Simplify right side
    80,573.28x = 3,702,053,601.88
  5. Step 5: Solve for x
    x = 3,702,053,601.88/80,573.28
  6. Step 6: Final answer
    x = 45,946.42

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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.