Home / 83,939.10-125,811.45-33,986.40

Finding the Fourth Proportional to 83,939.10, 125,811.45 and 33,986.40

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Solution

The fourth proportional to 83,939.10, 125,811.45 and 33,986.40 is: 50,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,939.10 : 125,811.45 = 33,986.40 : x
  2. Step 2: Convert to fraction form
    83,939.10/125,811.45 = 33,986.40/x
  3. Step 3: Cross multiply
    83,939.10x = 125,811.45 × 33,986.40
  4. Step 4: Simplify right side
    83,939.10x = 4,275,878,264.28
  5. Step 5: Solve for x
    x = 4,275,878,264.28/83,939.10
  6. Step 6: Final answer
    x = 50,940.24

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1.5x scale

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.