Home / 65,371.20-98,121.60-32,128.80

Finding the Fourth Proportional to 65,371.20, 98,121.60 and 32,128.80

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Solution

The fourth proportional to 65,371.20, 98,121.60 and 32,128.80 is: 48,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,371.20 : 98,121.60 = 32,128.80 : x
  2. Step 2: Convert to fraction form
    65,371.20/98,121.60 = 32,128.80/x
  3. Step 3: Cross multiply
    65,371.20x = 98,121.60 × 32,128.80
  4. Step 4: Simplify right side
    65,371.20x = 3,152,529,262.08
  5. Step 5: Solve for x
    x = 3,152,529,262.08/65,371.20
  6. Step 6: Final answer
    x = 48,225.05

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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.