Home / 55,821.56-83,744.64-18,380.12

Finding the Fourth Proportional to 55,821.56, 83,744.64 and 18,380.12

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Solution

The fourth proportional to 55,821.56, 83,744.64 and 18,380.12 is: 27,574.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,821.56 : 83,744.64 = 18,380.12 : x
  2. Step 2: Convert to fraction form
    55,821.56/83,744.64 = 18,380.12/x
  3. Step 3: Cross multiply
    55,821.56x = 83,744.64 × 18,380.12
  4. Step 4: Simplify right side
    55,821.56x = 1,539,236,532.56
  5. Step 5: Solve for x
    x = 1,539,236,532.56/55,821.56
  6. Step 6: Final answer
    x = 27,574.23

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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.