Home / 87,518.54-120,787.09-49,285.55

Finding the Fourth Proportional to 87,518.54, 120,787.09 and 49,285.55

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Solution

The fourth proportional to 87,518.54, 120,787.09 and 49,285.55 is: 68,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,518.54 : 120,787.09 = 49,285.55 : x
  2. Step 2: Convert to fraction form
    87,518.54/120,787.09 = 49,285.55/x
  3. Step 3: Cross multiply
    87,518.54x = 120,787.09 × 49,285.55
  4. Step 4: Simplify right side
    87,518.54x = 5,953,058,163.55
  5. Step 5: Solve for x
    x = 5,953,058,163.55/87,518.54
  6. Step 6: Final answer
    x = 68,020.54

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1.5x scale

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.