Home / 87,943.80-121,361.67-47,656.41

Finding the Fourth Proportional to 87,943.80, 121,361.67 and 47,656.41

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Solution

The fourth proportional to 87,943.80, 121,361.67 and 47,656.41 is: 65,765.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,943.80 : 121,361.67 = 47,656.41 : x
  2. Step 2: Convert to fraction form
    87,943.80/121,361.67 = 47,656.41/x
  3. Step 3: Cross multiply
    87,943.80x = 121,361.67 × 47,656.41
  4. Step 4: Simplify right side
    87,943.80x = 5,783,661,503.80
  5. Step 5: Solve for x
    x = 5,783,661,503.80/87,943.80
  6. Step 6: Final answer
    x = 65,765.43

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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.