Home / 65,880.25-90,914.78-35,665.57

Finding the Fourth Proportional to 65,880.25, 90,914.78 and 35,665.57

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Solution

The fourth proportional to 65,880.25, 90,914.78 and 35,665.57 is: 49,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,880.25 : 90,914.78 = 35,665.57 : x
  2. Step 2: Convert to fraction form
    65,880.25/90,914.78 = 35,665.57/x
  3. Step 3: Cross multiply
    65,880.25x = 90,914.78 × 35,665.57
  4. Step 4: Simplify right side
    65,880.25x = 3,242,527,450.12
  5. Step 5: Solve for x
    x = 3,242,527,450.12/65,880.25
  6. Step 6: Final answer
    x = 49,218.51

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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.