Home / 80,534.96-111,135.20-44,727.28

Finding the Fourth Proportional to 80,534.96, 111,135.20 and 44,727.28

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Solution

The fourth proportional to 80,534.96, 111,135.20 and 44,727.28 is: 61,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.96 : 111,135.20 = 44,727.28 : x
  2. Step 2: Convert to fraction form
    80,534.96/111,135.20 = 44,727.28/x
  3. Step 3: Cross multiply
    80,534.96x = 111,135.20 × 44,727.28
  4. Step 4: Simplify right side
    80,534.96x = 4,970,775,021.27
  5. Step 5: Solve for x
    x = 4,970,775,021.27/80,534.96
  6. Step 6: Final answer
    x = 61,721.95

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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.