Home / 67,140.80-100,647.20-25,009.60

Finding the Fourth Proportional to 67,140.80, 100,647.20 and 25,009.60

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Solution

The fourth proportional to 67,140.80, 100,647.20 and 25,009.60 is: 37,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,140.80 : 100,647.20 = 25,009.60 : x
  2. Step 2: Convert to fraction form
    67,140.80/100,647.20 = 25,009.60/x
  3. Step 3: Cross multiply
    67,140.80x = 100,647.20 × 25,009.60
  4. Step 4: Simplify right side
    67,140.80x = 2,517,146,213.12
  5. Step 5: Solve for x
    x = 2,517,146,213.12/67,140.80
  6. Step 6: Final answer
    x = 37,490.56

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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.