Home / 74,382.40-111,593.04-43,190.80

Finding the Fourth Proportional to 74,382.40, 111,593.04 and 43,190.80

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Solution

The fourth proportional to 74,382.40, 111,593.04 and 43,190.80 is: 64,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,382.40 : 111,593.04 = 43,190.80 : x
  2. Step 2: Convert to fraction form
    74,382.40/111,593.04 = 43,190.80/x
  3. Step 3: Cross multiply
    74,382.40x = 111,593.04 × 43,190.80
  4. Step 4: Simplify right side
    74,382.40x = 4,819,792,672.03
  5. Step 5: Solve for x
    x = 4,819,792,672.03/74,382.40
  6. Step 6: Final answer
    x = 64,797.49

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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.