Home / 83,831.18-125,762.31-27,675.20

Finding the Fourth Proportional to 83,831.18, 125,762.31 and 27,675.20

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Solution

The fourth proportional to 83,831.18, 125,762.31 and 27,675.20 is: 41,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.18 : 125,762.31 = 27,675.20 : x
  2. Step 2: Convert to fraction form
    83,831.18/125,762.31 = 27,675.20/x
  3. Step 3: Cross multiply
    83,831.18x = 125,762.31 × 27,675.20
  4. Step 4: Simplify right side
    83,831.18x = 3,480,497,081.71
  5. Step 5: Solve for x
    x = 3,480,497,081.71/83,831.18
  6. Step 6: Final answer
    x = 41,517.93

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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.