Home / 55,530.35-76,629.91-31,338.94

Finding the Fourth Proportional to 55,530.35, 76,629.91 and 31,338.94

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Solution

The fourth proportional to 55,530.35, 76,629.91 and 31,338.94 is: 43,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530.35 : 76,629.91 = 31,338.94 : x
  2. Step 2: Convert to fraction form
    55,530.35/76,629.91 = 31,338.94/x
  3. Step 3: Cross multiply
    55,530.35x = 76,629.91 × 31,338.94
  4. Step 4: Simplify right side
    55,530.35x = 2,401,500,151.70
  5. Step 5: Solve for x
    x = 2,401,500,151.70/55,530.35
  6. Step 6: Final answer
    x = 43,246.62

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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.