Home / 80,933.35-121,435.05-43,449.69

Finding the Fourth Proportional to 80,933.35, 121,435.05 and 43,449.69

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Solution

The fourth proportional to 80,933.35, 121,435.05 and 43,449.69 is: 65,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933.35 : 121,435.05 = 43,449.69 : x
  2. Step 2: Convert to fraction form
    80,933.35/121,435.05 = 43,449.69/x
  3. Step 3: Cross multiply
    80,933.35x = 121,435.05 × 43,449.69
  4. Step 4: Simplify right side
    80,933.35x = 5,276,315,277.63
  5. Step 5: Solve for x
    x = 5,276,315,277.63/80,933.35
  6. Step 6: Final answer
    x = 65,193.34

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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.