Home / 76,769.28-115,056-34,604.16

Finding the Fourth Proportional to 76,769.28, 115,056 and 34,604.16

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Solution

The fourth proportional to 76,769.28, 115,056 and 34,604.16 is: 51,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,769.28 : 115,056 = 34,604.16 : x
  2. Step 2: Convert to fraction form
    76,769.28/115,056 = 34,604.16/x
  3. Step 3: Cross multiply
    76,769.28x = 115,056 × 34,604.16
  4. Step 4: Simplify right side
    76,769.28x = 3,981,416,232.96
  5. Step 5: Solve for x
    x = 3,981,416,232.96/76,769.28
  6. Step 6: Final answer
    x = 51,862.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.