Home / 85,276.91-117,692.16-48,991.34

Finding the Fourth Proportional to 85,276.91, 117,692.16 and 48,991.34

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Solution

The fourth proportional to 85,276.91, 117,692.16 and 48,991.34 is: 67,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276.91 : 117,692.16 = 48,991.34 : x
  2. Step 2: Convert to fraction form
    85,276.91/117,692.16 = 48,991.34/x
  3. Step 3: Cross multiply
    85,276.91x = 117,692.16 × 48,991.34
  4. Step 4: Simplify right side
    85,276.91x = 5,765,896,625.89
  5. Step 5: Solve for x
    x = 5,765,896,625.89/85,276.91
  6. Step 6: Final answer
    x = 67,613.81

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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.