Home / 80,937.28-121,429.44-33,543.68

Finding the Fourth Proportional to 80,937.28, 121,429.44 and 33,543.68

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Solution

The fourth proportional to 80,937.28, 121,429.44 and 33,543.68 is: 50,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,937.28 : 121,429.44 = 33,543.68 : x
  2. Step 2: Convert to fraction form
    80,937.28/121,429.44 = 33,543.68/x
  3. Step 3: Cross multiply
    80,937.28x = 121,429.44 × 33,543.68
  4. Step 4: Simplify right side
    80,937.28x = 4,073,190,277.94
  5. Step 5: Solve for x
    x = 4,073,190,277.94/80,937.28
  6. Step 6: Final answer
    x = 50,325.27

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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.