Home / 91,831.96-137,801.11-38,519.19

Finding the Fourth Proportional to 91,831.96, 137,801.11 and 38,519.19

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Solution

The fourth proportional to 91,831.96, 137,801.11 and 38,519.19 is: 57,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.96 : 137,801.11 = 38,519.19 : x
  2. Step 2: Convert to fraction form
    91,831.96/137,801.11 = 38,519.19/x
  3. Step 3: Cross multiply
    91,831.96x = 137,801.11 × 38,519.19
  4. Step 4: Simplify right side
    91,831.96x = 5,307,987,138.30
  5. Step 5: Solve for x
    x = 5,307,987,138.30/91,831.96
  6. Step 6: Final answer
    x = 57,801.09

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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.