Home / 55,323.45-76,346.61-31,455.11

Finding the Fourth Proportional to 55,323.45, 76,346.61 and 31,455.11

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Solution

The fourth proportional to 55,323.45, 76,346.61 and 31,455.11 is: 43,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,323.45 : 76,346.61 = 31,455.11 : x
  2. Step 2: Convert to fraction form
    55,323.45/76,346.61 = 31,455.11/x
  3. Step 3: Cross multiply
    55,323.45x = 76,346.61 × 31,455.11
  4. Step 4: Simplify right side
    55,323.45x = 2,401,491,015.68
  5. Step 5: Solve for x
    x = 2,401,491,015.68/55,323.45
  6. Step 6: Final answer
    x = 43,408.19

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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.