Home / 55,727.85-83,723-45,405.21

Finding the Fourth Proportional to 55,727.85, 83,723 and 45,405.21

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Solution

The fourth proportional to 55,727.85, 83,723 and 45,405.21 is: 68,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,727.85 : 83,723 = 45,405.21 : x
  2. Step 2: Convert to fraction form
    55,727.85/83,723 = 45,405.21/x
  3. Step 3: Cross multiply
    55,727.85x = 83,723 × 45,405.21
  4. Step 4: Simplify right side
    55,727.85x = 3,801,460,396.83
  5. Step 5: Solve for x
    x = 3,801,460,396.83/55,727.85
  6. Step 6: Final answer
    x = 68,214.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.