Home / 67,335.36-100,995.12-20,588.64

Finding the Fourth Proportional to 67,335.36, 100,995.12 and 20,588.64

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Solution

The fourth proportional to 67,335.36, 100,995.12 and 20,588.64 is: 30,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,335.36 : 100,995.12 = 20,588.64 : x
  2. Step 2: Convert to fraction form
    67,335.36/100,995.12 = 20,588.64/x
  3. Step 3: Cross multiply
    67,335.36x = 100,995.12 × 20,588.64
  4. Step 4: Simplify right side
    67,335.36x = 2,079,352,167.44
  5. Step 5: Solve for x
    x = 2,079,352,167.44/67,335.36
  6. Step 6: Final answer
    x = 30,880.54

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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.