Home / 91,831.20-137,714.40-32,668.80

Finding the Fourth Proportional to 91,831.20, 137,714.40 and 32,668.80

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Solution

The fourth proportional to 91,831.20, 137,714.40 and 32,668.80 is: 48,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.20 : 137,714.40 = 32,668.80 : x
  2. Step 2: Convert to fraction form
    91,831.20/137,714.40 = 32,668.80/x
  3. Step 3: Cross multiply
    91,831.20x = 137,714.40 × 32,668.80
  4. Step 4: Simplify right side
    91,831.20x = 4,498,964,190.72
  5. Step 5: Solve for x
    x = 4,498,964,190.72/91,831.20
  6. Step 6: Final answer
    x = 48,991.67

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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.