Home / 87,989.44-121,371.06-54,003.46

Finding the Fourth Proportional to 87,989.44, 121,371.06 and 54,003.46

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Solution

The fourth proportional to 87,989.44, 121,371.06 and 54,003.46 is: 74,491.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,989.44 : 121,371.06 = 54,003.46 : x
  2. Step 2: Convert to fraction form
    87,989.44/121,371.06 = 54,003.46/x
  3. Step 3: Cross multiply
    87,989.44x = 121,371.06 × 54,003.46
  4. Step 4: Simplify right side
    87,989.44x = 6,554,457,183.87
  5. Step 5: Solve for x
    x = 6,554,457,183.87/87,989.44
  6. Step 6: Final answer
    x = 74,491.41

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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.