Home / 55,321.87-76,350.63-31,452.12

Finding the Fourth Proportional to 55,321.87, 76,350.63 and 31,452.12

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Solution

The fourth proportional to 55,321.87, 76,350.63 and 31,452.12 is: 43,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.87 : 76,350.63 = 31,452.12 : x
  2. Step 2: Convert to fraction form
    55,321.87/76,350.63 = 31,452.12/x
  3. Step 3: Cross multiply
    55,321.87x = 76,350.63 × 31,452.12
  4. Step 4: Simplify right side
    55,321.87x = 2,401,388,795.08
  5. Step 5: Solve for x
    x = 2,401,388,795.08/55,321.87
  6. Step 6: Final answer
    x = 43,407.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.