Home / 65,193.15-89,963.42-40,037.79

Finding the Fourth Proportional to 65,193.15, 89,963.42 and 40,037.79

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Solution

The fourth proportional to 65,193.15, 89,963.42 and 40,037.79 is: 55,250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,193.15 : 89,963.42 = 40,037.79 : x
  2. Step 2: Convert to fraction form
    65,193.15/89,963.42 = 40,037.79/x
  3. Step 3: Cross multiply
    65,193.15x = 89,963.42 × 40,037.79
  4. Step 4: Simplify right side
    65,193.15x = 3,601,936,517.64
  5. Step 5: Solve for x
    x = 3,601,936,517.64/65,193.15
  6. Step 6: Final answer
    x = 55,250.23

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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.