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Finding the Fourth Proportional to 45,917.70, 68,864.40 and 14,327.70

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Solution

The fourth proportional to 45,917.70, 68,864.40 and 14,327.70 is: 21,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,917.70 : 68,864.40 = 14,327.70 : x
  2. Step 2: Convert to fraction form
    45,917.70/68,864.40 = 14,327.70/x
  3. Step 3: Cross multiply
    45,917.70x = 68,864.40 × 14,327.70
  4. Step 4: Simplify right side
    45,917.70x = 986,668,463.88
  5. Step 5: Solve for x
    x = 986,668,463.88/45,917.70
  6. Step 6: Final answer
    x = 21,487.76

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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.