Home / 80,170.16-120,263.13-30,292.11

Finding the Fourth Proportional to 80,170.16, 120,263.13 and 30,292.11

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Solution

The fourth proportional to 80,170.16, 120,263.13 and 30,292.11 is: 45,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,170.16 : 120,263.13 = 30,292.11 : x
  2. Step 2: Convert to fraction form
    80,170.16/120,263.13 = 30,292.11/x
  3. Step 3: Cross multiply
    80,170.16x = 120,263.13 × 30,292.11
  4. Step 4: Simplify right side
    80,170.16x = 3,643,023,962.90
  5. Step 5: Solve for x
    x = 3,643,023,962.90/80,170.16
  6. Step 6: Final answer
    x = 45,441.15

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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.