Home / 87,167.49-120,267.23-53,181.51

Finding the Fourth Proportional to 87,167.49, 120,267.23 and 53,181.51

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Solution

The fourth proportional to 87,167.49, 120,267.23 and 53,181.51 is: 73,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,167.49 : 120,267.23 = 53,181.51 : x
  2. Step 2: Convert to fraction form
    87,167.49/120,267.23 = 53,181.51/x
  3. Step 3: Cross multiply
    87,167.49x = 120,267.23 × 53,181.51
  4. Step 4: Simplify right side
    87,167.49x = 6,395,992,629.01
  5. Step 5: Solve for x
    x = 6,395,992,629.01/87,167.49
  6. Step 6: Final answer
    x = 73,375.90

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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.