Home / 55,329.47-76,349.54-31,451.48

Finding the Fourth Proportional to 55,329.47, 76,349.54 and 31,451.48

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Solution

The fourth proportional to 55,329.47, 76,349.54 and 31,451.48 is: 43,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,329.47 : 76,349.54 = 31,451.48 : x
  2. Step 2: Convert to fraction form
    55,329.47/76,349.54 = 31,451.48/x
  3. Step 3: Cross multiply
    55,329.47x = 76,349.54 × 31,451.48
  4. Step 4: Simplify right side
    55,329.47x = 2,401,305,491.31
  5. Step 5: Solve for x
    x = 2,401,305,491.31/55,329.47
  6. Step 6: Final answer
    x = 43,400.12

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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.