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Finding the Third Proportional to 57,705.75 and 90,203.75

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Solution

The third proportional to 57,705.75 and 90,203.75 is: 141,003.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,705.75 : 90,203.75 = 90,203.75 : x
  2. Step 2: Convert to fraction form
    57,705.75/90,203.75 = 90,203.75/x
  3. Step 3: Cross multiply
    57,705.75x = 90,203.75 × 90,203.75
  4. Step 4: Simplify right side
    57,705.75x = 8,136,716,514.06
  5. Step 5: Solve for x
    x = 8,136,716,514.06/57,705.75
  6. Step 6: Final answer
    x = 141,003.57

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.