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Finding the Third Proportional to 60,350 and 90,120

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Solution

The third proportional to 60,350 and 90,120 is: 134,575.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,350 : 90,120 = 90,120 : x
  2. Step 2: Convert to fraction form
    60,350/90,120 = 90,120/x
  3. Step 3: Cross multiply
    60,350x = 90,120 × 90,120
  4. Step 4: Simplify right side
    60,350x = 8,121,614,400
  5. Step 5: Solve for x
    x = 8,121,614,400/60,350
  6. Step 6: Final answer
    x = 134,575.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.