Home / 80,839.06-121,272.09-36,464.83

Finding the Fourth Proportional to 80,839.06, 121,272.09 and 36,464.83

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Solution

The fourth proportional to 80,839.06, 121,272.09 and 36,464.83 is: 54,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,839.06 : 121,272.09 = 36,464.83 : x
  2. Step 2: Convert to fraction form
    80,839.06/121,272.09 = 36,464.83/x
  3. Step 3: Cross multiply
    80,839.06x = 121,272.09 × 36,464.83
  4. Step 4: Simplify right side
    80,839.06x = 4,422,166,145.59
  5. Step 5: Solve for x
    x = 4,422,166,145.59/80,839.06
  6. Step 6: Final answer
    x = 54,703.33

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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.