Home / 57,831.75-86,648.52-38,820.79

Finding the Fourth Proportional to 57,831.75, 86,648.52 and 38,820.79

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Solution

The fourth proportional to 57,831.75, 86,648.52 and 38,820.79 is: 58,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,831.75 : 86,648.52 = 38,820.79 : x
  2. Step 2: Convert to fraction form
    57,831.75/86,648.52 = 38,820.79/x
  3. Step 3: Cross multiply
    57,831.75x = 86,648.52 × 38,820.79
  4. Step 4: Simplify right side
    57,831.75x = 3,363,763,998.73
  5. Step 5: Solve for x
    x = 3,363,763,998.73/57,831.75
  6. Step 6: Final answer
    x = 58,164.66

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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.