Home / 67,215.28-100,822.92-20,468.16

Finding the Fourth Proportional to 67,215.28, 100,822.92 and 20,468.16

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Solution

The fourth proportional to 67,215.28, 100,822.92 and 20,468.16 is: 30,702.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,215.28 : 100,822.92 = 20,468.16 : x
  2. Step 2: Convert to fraction form
    67,215.28/100,822.92 = 20,468.16/x
  3. Step 3: Cross multiply
    67,215.28x = 100,822.92 × 20,468.16
  4. Step 4: Simplify right side
    67,215.28x = 2,063,659,658.23
  5. Step 5: Solve for x
    x = 2,063,659,658.23/67,215.28
  6. Step 6: Final answer
    x = 30,702.24

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1.5x scale

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.