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Finding the Fourth Proportional to 45,805.54, 68,707.44 and 14,640.78

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Solution

The fourth proportional to 45,805.54, 68,707.44 and 14,640.78 is: 21,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,805.54 : 68,707.44 = 14,640.78 : x
  2. Step 2: Convert to fraction form
    45,805.54/68,707.44 = 14,640.78/x
  3. Step 3: Cross multiply
    45,805.54x = 68,707.44 × 14,640.78
  4. Step 4: Simplify right side
    45,805.54x = 1,005,930,513.40
  5. Step 5: Solve for x
    x = 1,005,930,513.40/45,805.54
  6. Step 6: Final answer
    x = 21,960.89

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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.