Home / 68,642.24-94,727.90-38,426.80

Finding the Fourth Proportional to 68,642.24, 94,727.90 and 38,426.80

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Solution

The fourth proportional to 68,642.24, 94,727.90 and 38,426.80 is: 53,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,642.24 : 94,727.90 = 38,426.80 : x
  2. Step 2: Convert to fraction form
    68,642.24/94,727.90 = 38,426.80/x
  3. Step 3: Cross multiply
    68,642.24x = 94,727.90 × 38,426.80
  4. Step 4: Simplify right side
    68,642.24x = 3,640,090,067.72
  5. Step 5: Solve for x
    x = 3,640,090,067.72/68,642.24
  6. Step 6: Final answer
    x = 53,029.88

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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.