Home / 55,119.78-76,064.94-29,969.28

Finding the Fourth Proportional to 55,119.78, 76,064.94 and 29,969.28

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Solution

The fourth proportional to 55,119.78, 76,064.94 and 29,969.28 is: 41,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,119.78 : 76,064.94 = 29,969.28 : x
  2. Step 2: Convert to fraction form
    55,119.78/76,064.94 = 29,969.28/x
  3. Step 3: Cross multiply
    55,119.78x = 76,064.94 × 29,969.28
  4. Step 4: Simplify right side
    55,119.78x = 2,279,611,485.04
  5. Step 5: Solve for x
    x = 2,279,611,485.04/55,119.78
  6. Step 6: Final answer
    x = 41,357.41

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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.