Home / 80,228.76-120,344.70-30,332.34

Finding the Fourth Proportional to 80,228.76, 120,344.70 and 30,332.34

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Solution

The fourth proportional to 80,228.76, 120,344.70 and 30,332.34 is: 45,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,228.76 : 120,344.70 = 30,332.34 : x
  2. Step 2: Convert to fraction form
    80,228.76/120,344.70 = 30,332.34/x
  3. Step 3: Cross multiply
    80,228.76x = 120,344.70 × 30,332.34
  4. Step 4: Simplify right side
    80,228.76x = 3,650,336,357.60
  5. Step 5: Solve for x
    x = 3,650,336,357.60/80,228.76
  6. Step 6: Final answer
    x = 45,499.10

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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.