Home / 83,431.62-115,172.28-53,256.29

Finding the Fourth Proportional to 83,431.62, 115,172.28 and 53,256.29

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Solution

The fourth proportional to 83,431.62, 115,172.28 and 53,256.29 is: 73,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,431.62 : 115,172.28 = 53,256.29 : x
  2. Step 2: Convert to fraction form
    83,431.62/115,172.28 = 53,256.29/x
  3. Step 3: Cross multiply
    83,431.62x = 115,172.28 × 53,256.29
  4. Step 4: Simplify right side
    83,431.62x = 6,133,647,767.78
  5. Step 5: Solve for x
    x = 6,133,647,767.78/83,431.62
  6. Step 6: Final answer
    x = 73,517.06

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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.