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Finding the Fourth Proportional to 85,302.83, 117,679.84 and 49,472.09

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Solution

The fourth proportional to 85,302.83, 117,679.84 and 49,472.09 is: 68,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.83 : 117,679.84 = 49,472.09 : x
  2. Step 2: Convert to fraction form
    85,302.83/117,679.84 = 49,472.09/x
  3. Step 3: Cross multiply
    85,302.83x = 117,679.84 × 49,472.09
  4. Step 4: Simplify right side
    85,302.83x = 5,821,867,635.67
  5. Step 5: Solve for x
    x = 5,821,867,635.67/85,302.83
  6. Step 6: Final answer
    x = 68,249.41

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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.