Home / 39,839.60-59,629.80-36,729.20

Finding the Fourth Proportional to 39,839.60, 59,629.80 and 36,729.20

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Solution

The fourth proportional to 39,839.60, 59,629.80 and 36,729.20 is: 54,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,839.60 : 59,629.80 = 36,729.20 : x
  2. Step 2: Convert to fraction form
    39,839.60/59,629.80 = 36,729.20/x
  3. Step 3: Cross multiply
    39,839.60x = 59,629.80 × 36,729.20
  4. Step 4: Simplify right side
    39,839.60x = 2,190,154,850.16
  5. Step 5: Solve for x
    x = 2,190,154,850.16/39,839.60
  6. Step 6: Final answer
    x = 54,974.32

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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.