Home / 80,642.36-111,281.27-44,831.45

Finding the Fourth Proportional to 80,642.36, 111,281.27 and 44,831.45

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Solution

The fourth proportional to 80,642.36, 111,281.27 and 44,831.45 is: 61,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,642.36 : 111,281.27 = 44,831.45 : x
  2. Step 2: Convert to fraction form
    80,642.36/111,281.27 = 44,831.45/x
  3. Step 3: Cross multiply
    80,642.36x = 111,281.27 × 44,831.45
  4. Step 4: Simplify right side
    80,642.36x = 4,988,900,467.78
  5. Step 5: Solve for x
    x = 4,988,900,467.78/80,642.36
  6. Step 6: Final answer
    x = 61,864.51

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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.