Home / 43,086.39-64,629.49-20,528.60

Finding the Fourth Proportional to 43,086.39, 64,629.49 and 20,528.60

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Solution

The fourth proportional to 43,086.39, 64,629.49 and 20,528.60 is: 30,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,086.39 : 64,629.49 = 20,528.60 : x
  2. Step 2: Convert to fraction form
    43,086.39/64,629.49 = 20,528.60/x
  3. Step 3: Cross multiply
    43,086.39x = 64,629.49 × 20,528.60
  4. Step 4: Simplify right side
    43,086.39x = 1,326,752,971.70
  5. Step 5: Solve for x
    x = 1,326,752,971.70/43,086.39
  6. Step 6: Final answer
    x = 30,792.85

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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.