Home / 87,800.31-121,163.58-47,513.25

Finding the Fourth Proportional to 87,800.31, 121,163.58 and 47,513.25

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Solution

The fourth proportional to 87,800.31, 121,163.58 and 47,513.25 is: 65,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,800.31 : 121,163.58 = 47,513.25 : x
  2. Step 2: Convert to fraction form
    87,800.31/121,163.58 = 47,513.25/x
  3. Step 3: Cross multiply
    87,800.31x = 121,163.58 × 47,513.25
  4. Step 4: Simplify right side
    87,800.31x = 5,756,875,467.44
  5. Step 5: Solve for x
    x = 5,756,875,467.44/87,800.31
  6. Step 6: Final answer
    x = 65,567.83

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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.