Home / 85,137.92-117,517.44-58,270.40

Finding the Fourth Proportional to 85,137.92, 117,517.44 and 58,270.40

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Solution

The fourth proportional to 85,137.92, 117,517.44 and 58,270.40 is: 80,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,137.92 : 117,517.44 = 58,270.40 : x
  2. Step 2: Convert to fraction form
    85,137.92/117,517.44 = 58,270.40/x
  3. Step 3: Cross multiply
    85,137.92x = 117,517.44 × 58,270.40
  4. Step 4: Simplify right side
    85,137.92x = 6,847,788,235.78
  5. Step 5: Solve for x
    x = 6,847,788,235.78/85,137.92
  6. Step 6: Final answer
    x = 80,431.71

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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.