Home / 80,996.56-111,775.65-45,188.58

Finding the Fourth Proportional to 80,996.56, 111,775.65 and 45,188.58

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Solution

The fourth proportional to 80,996.56, 111,775.65 and 45,188.58 is: 62,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,996.56 : 111,775.65 = 45,188.58 : x
  2. Step 2: Convert to fraction form
    80,996.56/111,775.65 = 45,188.58/x
  3. Step 3: Cross multiply
    80,996.56x = 111,775.65 × 45,188.58
  4. Step 4: Simplify right side
    80,996.56x = 5,050,983,151.78
  5. Step 5: Solve for x
    x = 5,050,983,151.78/80,996.56
  6. Step 6: Final answer
    x = 62,360.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.