Home / 87,936.69-121,352.75-47,650.46

Finding the Fourth Proportional to 87,936.69, 121,352.75 and 47,650.46

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Solution

The fourth proportional to 87,936.69, 121,352.75 and 47,650.46 is: 65,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936.69 : 121,352.75 = 47,650.46 : x
  2. Step 2: Convert to fraction form
    87,936.69/121,352.75 = 47,650.46/x
  3. Step 3: Cross multiply
    87,936.69x = 121,352.75 × 47,650.46
  4. Step 4: Simplify right side
    87,936.69x = 5,782,513,693.44
  5. Step 5: Solve for x
    x = 5,782,513,693.44/87,936.69
  6. Step 6: Final answer
    x = 65,757.69

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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.