Home / 80,247.11-120,304.98-30,298.86

Finding the Fourth Proportional to 80,247.11, 120,304.98 and 30,298.86

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Solution

The fourth proportional to 80,247.11, 120,304.98 and 30,298.86 is: 45,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,247.11 : 120,304.98 = 30,298.86 : x
  2. Step 2: Convert to fraction form
    80,247.11/120,304.98 = 30,298.86/x
  3. Step 3: Cross multiply
    80,247.11x = 120,304.98 × 30,298.86
  4. Step 4: Simplify right side
    80,247.11x = 3,645,103,746.32
  5. Step 5: Solve for x
    x = 3,645,103,746.32/80,247.11
  6. Step 6: Final answer
    x = 45,423.49

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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.