Home / 80,643.85-111,282.20-44,831.68

Finding the Fourth Proportional to 80,643.85, 111,282.20 and 44,831.68

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Solution

The fourth proportional to 80,643.85, 111,282.20 and 44,831.68 is: 61,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,643.85 : 111,282.20 = 44,831.68 : x
  2. Step 2: Convert to fraction form
    80,643.85/111,282.20 = 44,831.68/x
  3. Step 3: Cross multiply
    80,643.85x = 111,282.20 × 44,831.68
  4. Step 4: Simplify right side
    80,643.85x = 4,988,967,199.53
  5. Step 5: Solve for x
    x = 4,988,967,199.53/80,643.85
  6. Step 6: Final answer
    x = 61,864.20

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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.