Home / 67,211.02-100,831.56-20,467.54

Finding the Fourth Proportional to 67,211.02, 100,831.56 and 20,467.54

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Solution

The fourth proportional to 67,211.02, 100,831.56 and 20,467.54 is: 30,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.02 : 100,831.56 = 20,467.54 : x
  2. Step 2: Convert to fraction form
    67,211.02/100,831.56 = 20,467.54/x
  3. Step 3: Cross multiply
    67,211.02x = 100,831.56 × 20,467.54
  4. Step 4: Simplify right side
    67,211.02x = 2,063,773,987.56
  5. Step 5: Solve for x
    x = 2,063,773,987.56/67,211.02
  6. Step 6: Final answer
    x = 30,705.89

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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.