Home / 68,851.38-95,016.79-38,638.55

Finding the Fourth Proportional to 68,851.38, 95,016.79 and 38,638.55

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Solution

The fourth proportional to 68,851.38, 95,016.79 and 38,638.55 is: 53,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851.38 : 95,016.79 = 38,638.55 : x
  2. Step 2: Convert to fraction form
    68,851.38/95,016.79 = 38,638.55/x
  3. Step 3: Cross multiply
    68,851.38x = 95,016.79 × 38,638.55
  4. Step 4: Simplify right side
    68,851.38x = 3,671,311,277.09
  5. Step 5: Solve for x
    x = 3,671,311,277.09/68,851.38
  6. Step 6: Final answer
    x = 53,322.26

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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.