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Finding the Fourth Proportional to 69,416.72, 104,129.64 and 27,858.32

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Solution

The fourth proportional to 69,416.72, 104,129.64 and 27,858.32 is: 41,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,416.72 : 104,129.64 = 27,858.32 : x
  2. Step 2: Convert to fraction form
    69,416.72/104,129.64 = 27,858.32/x
  3. Step 3: Cross multiply
    69,416.72x = 104,129.64 × 27,858.32
  4. Step 4: Simplify right side
    69,416.72x = 2,900,876,832.60
  5. Step 5: Solve for x
    x = 2,900,876,832.60/69,416.72
  6. Step 6: Final answer
    x = 41,789.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.