Home / 85,190.70-117,554.58-49,391.94

Finding the Fourth Proportional to 85,190.70, 117,554.58 and 49,391.94

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Solution

The fourth proportional to 85,190.70, 117,554.58 and 49,391.94 is: 68,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,190.70 : 117,554.58 = 49,391.94 : x
  2. Step 2: Convert to fraction form
    85,190.70/117,554.58 = 49,391.94/x
  3. Step 3: Cross multiply
    85,190.70x = 117,554.58 × 49,391.94
  4. Step 4: Simplify right side
    85,190.70x = 5,806,248,762.09
  5. Step 5: Solve for x
    x = 5,806,248,762.09/85,190.70
  6. Step 6: Final answer
    x = 68,155.90

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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.