Home / 68,331.12-94,292.88-39,648.56

Finding the Fourth Proportional to 68,331.12, 94,292.88 and 39,648.56

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Solution

The fourth proportional to 68,331.12, 94,292.88 and 39,648.56 is: 54,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,331.12 : 94,292.88 = 39,648.56 : x
  2. Step 2: Convert to fraction form
    68,331.12/94,292.88 = 39,648.56/x
  3. Step 3: Cross multiply
    68,331.12x = 94,292.88 × 39,648.56
  4. Step 4: Simplify right side
    68,331.12x = 3,738,576,910.25
  5. Step 5: Solve for x
    x = 3,738,576,910.25/68,331.12
  6. Step 6: Final answer
    x = 54,712.65

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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.