Home / 83,694.72-125,563.84-31,119.36

Finding the Fourth Proportional to 83,694.72, 125,563.84 and 31,119.36

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Solution

The fourth proportional to 83,694.72, 125,563.84 and 31,119.36 is: 46,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,694.72 : 125,563.84 = 31,119.36 : x
  2. Step 2: Convert to fraction form
    83,694.72/125,563.84 = 31,119.36/x
  3. Step 3: Cross multiply
    83,694.72x = 125,563.84 × 31,119.36
  4. Step 4: Simplify right side
    83,694.72x = 3,907,466,339.94
  5. Step 5: Solve for x
    x = 3,907,466,339.94/83,694.72
  6. Step 6: Final answer
    x = 46,687.13

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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.