Home / 68,678.19-94,778.24-38,464.79

Finding the Fourth Proportional to 68,678.19, 94,778.24 and 38,464.79

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Solution

The fourth proportional to 68,678.19, 94,778.24 and 38,464.79 is: 53,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,678.19 : 94,778.24 = 38,464.79 : x
  2. Step 2: Convert to fraction form
    68,678.19/94,778.24 = 38,464.79/x
  3. Step 3: Cross multiply
    68,678.19x = 94,778.24 × 38,464.79
  4. Step 4: Simplify right side
    68,678.19x = 3,645,624,431.95
  5. Step 5: Solve for x
    x = 3,645,624,431.95/68,678.19
  6. Step 6: Final answer
    x = 53,082.71

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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.