Home / 80,816.90-111,519.34-45,010.24

Finding the Fourth Proportional to 80,816.90, 111,519.34 and 45,010.24

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Solution

The fourth proportional to 80,816.90, 111,519.34 and 45,010.24 is: 62,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,816.90 : 111,519.34 = 45,010.24 : x
  2. Step 2: Convert to fraction form
    80,816.90/111,519.34 = 45,010.24/x
  3. Step 3: Cross multiply
    80,816.90x = 111,519.34 × 45,010.24
  4. Step 4: Simplify right side
    80,816.90x = 5,019,512,494.01
  5. Step 5: Solve for x
    x = 5,019,512,494.01/80,816.90
  6. Step 6: Final answer
    x = 62,109.69

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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.