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Finding the Third Proportional to 60,360 and 91,080

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Solution

The third proportional to 60,360 and 91,080 is: 137,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,360 : 91,080 = 91,080 : x
  2. Step 2: Convert to fraction form
    60,360/91,080 = 91,080/x
  3. Step 3: Cross multiply
    60,360x = 91,080 × 91,080
  4. Step 4: Simplify right side
    60,360x = 8,295,566,400
  5. Step 5: Solve for x
    x = 8,295,566,400/60,360
  6. Step 6: Final answer
    x = 137,434.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.