Home / 68,218.80-94,142.07-38,005.20

Finding the Fourth Proportional to 68,218.80, 94,142.07 and 38,005.20

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Solution

The fourth proportional to 68,218.80, 94,142.07 and 38,005.20 is: 52,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,218.80 : 94,142.07 = 38,005.20 : x
  2. Step 2: Convert to fraction form
    68,218.80/94,142.07 = 38,005.20/x
  3. Step 3: Cross multiply
    68,218.80x = 94,142.07 × 38,005.20
  4. Step 4: Simplify right side
    68,218.80x = 3,577,888,198.76
  5. Step 5: Solve for x
    x = 3,577,888,198.76/68,218.80
  6. Step 6: Final answer
    x = 52,447.25

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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.