Home / 87,629.18-120,940.02-49,396.16

Finding the Fourth Proportional to 87,629.18, 120,940.02 and 49,396.16

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Solution

The fourth proportional to 87,629.18, 120,940.02 and 49,396.16 is: 68,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.18 : 120,940.02 = 49,396.16 : x
  2. Step 2: Convert to fraction form
    87,629.18/120,940.02 = 49,396.16/x
  3. Step 3: Cross multiply
    87,629.18x = 120,940.02 × 49,396.16
  4. Step 4: Simplify right side
    87,629.18x = 5,973,972,880.67
  5. Step 5: Solve for x
    x = 5,973,972,880.67/87,629.18
  6. Step 6: Final answer
    x = 68,173.33

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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.