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Finding the Fourth Proportional to 45,782.73, 68,663.34 and 12,494.88

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Solution

The fourth proportional to 45,782.73, 68,663.34 and 12,494.88 is: 18,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,782.73 : 68,663.34 = 12,494.88 : x
  2. Step 2: Convert to fraction form
    45,782.73/68,663.34 = 12,494.88/x
  3. Step 3: Cross multiply
    45,782.73x = 68,663.34 × 12,494.88
  4. Step 4: Simplify right side
    45,782.73x = 857,940,193.70
  5. Step 5: Solve for x
    x = 857,940,193.70/45,782.73
  6. Step 6: Final answer
    x = 18,739.38

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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.