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Finding the Third Proportional to 36,960 and 54,240

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Solution

The third proportional to 36,960 and 54,240 is: 79,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,960 : 54,240 = 54,240 : x
  2. Step 2: Convert to fraction form
    36,960/54,240 = 54,240/x
  3. Step 3: Cross multiply
    36,960x = 54,240 × 54,240
  4. Step 4: Simplify right side
    36,960x = 2,941,977,600
  5. Step 5: Solve for x
    x = 2,941,977,600/36,960
  6. Step 6: Final answer
    x = 79,598.96

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.