Home / 87,083.02-120,174.60-49,357.54

Finding the Fourth Proportional to 87,083.02, 120,174.60 and 49,357.54

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Solution

The fourth proportional to 87,083.02, 120,174.60 and 49,357.54 is: 68,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,083.02 : 120,174.60 = 49,357.54 : x
  2. Step 2: Convert to fraction form
    87,083.02/120,174.60 = 49,357.54/x
  3. Step 3: Cross multiply
    87,083.02x = 120,174.60 × 49,357.54
  4. Step 4: Simplify right side
    87,083.02x = 5,931,522,626.48
  5. Step 5: Solve for x
    x = 5,931,522,626.48/87,083.02
  6. Step 6: Final answer
    x = 68,113.42

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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.