Home / 83,579.12-125,286-30,974.48

Finding the Fourth Proportional to 83,579.12, 125,286 and 30,974.48

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Solution

The fourth proportional to 83,579.12, 125,286 and 30,974.48 is: 46,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,579.12 : 125,286 = 30,974.48 : x
  2. Step 2: Convert to fraction form
    83,579.12/125,286 = 30,974.48/x
  3. Step 3: Cross multiply
    83,579.12x = 125,286 × 30,974.48
  4. Step 4: Simplify right side
    83,579.12x = 3,880,668,701.28
  5. Step 5: Solve for x
    x = 3,880,668,701.28/83,579.12
  6. Step 6: Final answer
    x = 46,431.08

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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.