Home / 80,528.31-120,788.62-27,216.74

Finding the Fourth Proportional to 80,528.31, 120,788.62 and 27,216.74

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Solution

The fourth proportional to 80,528.31, 120,788.62 and 27,216.74 is: 40,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,528.31 : 120,788.62 = 27,216.74 : x
  2. Step 2: Convert to fraction form
    80,528.31/120,788.62 = 27,216.74/x
  3. Step 3: Cross multiply
    80,528.31x = 120,788.62 × 27,216.74
  4. Step 4: Simplify right side
    80,528.31x = 3,287,472,699.43
  5. Step 5: Solve for x
    x = 3,287,472,699.43/80,528.31
  6. Step 6: Final answer
    x = 40,823.81

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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.