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Finding the Fourth Proportional to 45,400.32, 68,100.48 and 14,238

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Solution

The fourth proportional to 45,400.32, 68,100.48 and 14,238 is: 21,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,400.32 : 68,100.48 = 14,238 : x
  2. Step 2: Convert to fraction form
    45,400.32/68,100.48 = 14,238/x
  3. Step 3: Cross multiply
    45,400.32x = 68,100.48 × 14,238
  4. Step 4: Simplify right side
    45,400.32x = 969,614,634.24
  5. Step 5: Solve for x
    x = 969,614,634.24/45,400.32
  6. Step 6: Final answer
    x = 21,357.00

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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.