Home / 67,020.28-92,519.44-38,720.48

Finding the Fourth Proportional to 67,020.28, 92,519.44 and 38,720.48

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Solution

The fourth proportional to 67,020.28, 92,519.44 and 38,720.48 is: 53,452.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,020.28 : 92,519.44 = 38,720.48 : x
  2. Step 2: Convert to fraction form
    67,020.28/92,519.44 = 38,720.48/x
  3. Step 3: Cross multiply
    67,020.28x = 92,519.44 × 38,720.48
  4. Step 4: Simplify right side
    67,020.28x = 3,582,397,126.13
  5. Step 5: Solve for x
    x = 3,582,397,126.13/67,020.28
  6. Step 6: Final answer
    x = 53,452.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.