Home / 55,321.62-76,350.29-31,451.87

Finding the Fourth Proportional to 55,321.62, 76,350.29 and 31,451.87

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Solution

The fourth proportional to 55,321.62, 76,350.29 and 31,451.87 is: 43,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.62 : 76,350.29 = 31,451.87 : x
  2. Step 2: Convert to fraction form
    55,321.62/76,350.29 = 31,451.87/x
  3. Step 3: Cross multiply
    55,321.62x = 76,350.29 × 31,451.87
  4. Step 4: Simplify right side
    55,321.62x = 2,401,358,856.53
  5. Step 5: Solve for x
    x = 2,401,358,856.53/55,321.62
  6. Step 6: Final answer
    x = 43,407.24

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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.