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Finding the Fourth Proportional to 45,355.80, 68,023.98 and 14,187

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Solution

The fourth proportional to 45,355.80, 68,023.98 and 14,187 is: 21,277.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.80 : 68,023.98 = 14,187 : x
  2. Step 2: Convert to fraction form
    45,355.80/68,023.98 = 14,187/x
  3. Step 3: Cross multiply
    45,355.80x = 68,023.98 × 14,187
  4. Step 4: Simplify right side
    45,355.80x = 965,056,204.26
  5. Step 5: Solve for x
    x = 965,056,204.26/45,355.80
  6. Step 6: Final answer
    x = 21,277.46

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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.