Home / 52,662.28-78,993.42-21,086.68

Finding the Fourth Proportional to 52,662.28, 78,993.42 and 21,086.68

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Solution

The fourth proportional to 52,662.28, 78,993.42 and 21,086.68 is: 31,630.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,662.28 : 78,993.42 = 21,086.68 : x
  2. Step 2: Convert to fraction form
    52,662.28/78,993.42 = 21,086.68/x
  3. Step 3: Cross multiply
    52,662.28x = 78,993.42 × 21,086.68
  4. Step 4: Simplify right side
    52,662.28x = 1,665,708,969.65
  5. Step 5: Solve for x
    x = 1,665,708,969.65/52,662.28
  6. Step 6: Final answer
    x = 31,630.02

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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.