Home / 80,955.42-121,446.09-36,580.38

Finding the Fourth Proportional to 80,955.42, 121,446.09 and 36,580.38

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Solution

The fourth proportional to 80,955.42, 121,446.09 and 36,580.38 is: 54,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,955.42 : 121,446.09 = 36,580.38 : x
  2. Step 2: Convert to fraction form
    80,955.42/121,446.09 = 36,580.38/x
  3. Step 3: Cross multiply
    80,955.42x = 121,446.09 × 36,580.38
  4. Step 4: Simplify right side
    80,955.42x = 4,442,544,121.71
  5. Step 5: Solve for x
    x = 4,442,544,121.71/80,955.42
  6. Step 6: Final answer
    x = 54,876.43

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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.