Home / 80,256.14-120,355.80-23,318.20

Finding the Fourth Proportional to 80,256.14, 120,355.80 and 23,318.20

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Solution

The fourth proportional to 80,256.14, 120,355.80 and 23,318.20 is: 34,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,256.14 : 120,355.80 = 23,318.20 : x
  2. Step 2: Convert to fraction form
    80,256.14/120,355.80 = 23,318.20/x
  3. Step 3: Cross multiply
    80,256.14x = 120,355.80 × 23,318.20
  4. Step 4: Simplify right side
    80,256.14x = 2,806,480,615.56
  5. Step 5: Solve for x
    x = 2,806,480,615.56/80,256.14
  6. Step 6: Final answer
    x = 34,969.05

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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.