Home / 83,831.16-125,749.68-27,672.60

Finding the Fourth Proportional to 83,831.16, 125,749.68 and 27,672.60

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Solution

The fourth proportional to 83,831.16, 125,749.68 and 27,672.60 is: 41,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.16 : 125,749.68 = 27,672.60 : x
  2. Step 2: Convert to fraction form
    83,831.16/125,749.68 = 27,672.60/x
  3. Step 3: Cross multiply
    83,831.16x = 125,749.68 × 27,672.60
  4. Step 4: Simplify right side
    83,831.16x = 3,479,820,594.77
  5. Step 5: Solve for x
    x = 3,479,820,594.77/83,831.16
  6. Step 6: Final answer
    x = 41,509.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.