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Finding the Third Proportional to 57,512 and 90,237

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Solution

The third proportional to 57,512 and 90,237 is: 141,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,512 : 90,237 = 90,237 : x
  2. Step 2: Convert to fraction form
    57,512/90,237 = 90,237/x
  3. Step 3: Cross multiply
    57,512x = 90,237 × 90,237
  4. Step 4: Simplify right side
    57,512x = 8,142,716,169
  5. Step 5: Solve for x
    x = 8,142,716,169/57,512
  6. Step 6: Final answer
    x = 141,582.91

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.