Home / 80,255.64-120,355.05-23,317.70

Finding the Fourth Proportional to 80,255.64, 120,355.05 and 23,317.70

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Solution

The fourth proportional to 80,255.64, 120,355.05 and 23,317.70 is: 34,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,255.64 : 120,355.05 = 23,317.70 : x
  2. Step 2: Convert to fraction form
    80,255.64/120,355.05 = 23,317.70/x
  3. Step 3: Cross multiply
    80,255.64x = 120,355.05 × 23,317.70
  4. Step 4: Simplify right side
    80,255.64x = 2,806,402,949.39
  5. Step 5: Solve for x
    x = 2,806,402,949.39/80,255.64
  6. Step 6: Final answer
    x = 34,968.30

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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.