Home / 65,115.28-89,867.42-36,436.60

Finding the Fourth Proportional to 65,115.28, 89,867.42 and 36,436.60

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Solution

The fourth proportional to 65,115.28, 89,867.42 and 36,436.60 is: 50,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,115.28 : 89,867.42 = 36,436.60 : x
  2. Step 2: Convert to fraction form
    65,115.28/89,867.42 = 36,436.60/x
  3. Step 3: Cross multiply
    65,115.28x = 89,867.42 × 36,436.60
  4. Step 4: Simplify right side
    65,115.28x = 3,274,463,235.57
  5. Step 5: Solve for x
    x = 3,274,463,235.57/65,115.28
  6. Step 6: Final answer
    x = 50,287.17

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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.