Home / 87,969.75-121,395.00-47,682.64

Finding the Fourth Proportional to 87,969.75, 121,395.00 and 47,682.64

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Solution

The fourth proportional to 87,969.75, 121,395.00 and 47,682.64 is: 65,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,969.75 : 121,395.00 = 47,682.64 : x
  2. Step 2: Convert to fraction form
    87,969.75/121,395.00 = 47,682.64/x
  3. Step 3: Cross multiply
    87,969.75x = 121,395.00 × 47,682.64
  4. Step 4: Simplify right side
    87,969.75x = 5,788,434,520.28
  5. Step 5: Solve for x
    x = 5,788,434,520.28/87,969.75
  6. Step 6: Final answer
    x = 65,800.29

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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.