Home / 80,155.40-120,243.99-33,397.34

Finding the Fourth Proportional to 80,155.40, 120,243.99 and 33,397.34

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Solution

The fourth proportional to 80,155.40, 120,243.99 and 33,397.34 is: 50,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,155.40 : 120,243.99 = 33,397.34 : x
  2. Step 2: Convert to fraction form
    80,155.40/120,243.99 = 33,397.34/x
  3. Step 3: Cross multiply
    80,155.40x = 120,243.99 × 33,397.34
  4. Step 4: Simplify right side
    80,155.40x = 4,015,829,416.99
  5. Step 5: Solve for x
    x = 4,015,829,416.99/80,155.40
  6. Step 6: Final answer
    x = 50,100.55

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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.