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Finding the Fourth Proportional to 45,349.76, 68,024.78 and 13,760.08

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Solution

The fourth proportional to 45,349.76, 68,024.78 and 13,760.08 is: 20,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,349.76 : 68,024.78 = 13,760.08 : x
  2. Step 2: Convert to fraction form
    45,349.76/68,024.78 = 13,760.08/x
  3. Step 3: Cross multiply
    45,349.76x = 68,024.78 × 13,760.08
  4. Step 4: Simplify right side
    45,349.76x = 936,026,687.56
  5. Step 5: Solve for x
    x = 936,026,687.56/45,349.76
  6. Step 6: Final answer
    x = 20,640.17

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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.