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Finding the Fourth Proportional to 85,388.67, 117,861.39 and 49,594.77

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Solution

The fourth proportional to 85,388.67, 117,861.39 and 49,594.77 is: 68,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,388.67 : 117,861.39 = 49,594.77 : x
  2. Step 2: Convert to fraction form
    85,388.67/117,861.39 = 49,594.77/x
  3. Step 3: Cross multiply
    85,388.67x = 117,861.39 × 49,594.77
  4. Step 4: Simplify right side
    85,388.67x = 5,845,308,528.93
  5. Step 5: Solve for x
    x = 5,845,308,528.93/85,388.67
  6. Step 6: Final answer
    x = 68,455.32

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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.