Home / 80,642.16-111,286.08-44,831.04

Finding the Fourth Proportional to 80,642.16, 111,286.08 and 44,831.04

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Solution

The fourth proportional to 80,642.16, 111,286.08 and 44,831.04 is: 61,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,642.16 : 111,286.08 = 44,831.04 : x
  2. Step 2: Convert to fraction form
    80,642.16/111,286.08 = 44,831.04/x
  3. Step 3: Cross multiply
    80,642.16x = 111,286.08 × 44,831.04
  4. Step 4: Simplify right side
    80,642.16x = 4,989,070,703.92
  5. Step 5: Solve for x
    x = 4,989,070,703.92/80,642.16
  6. Step 6: Final answer
    x = 61,866.78

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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.