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Finding the Third Proportional to 53,605.50 and 120,871.50

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Solution

The third proportional to 53,605.50 and 120,871.50 is: 272,545.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,605.50 : 120,871.50 = 120,871.50 : x
  2. Step 2: Convert to fraction form
    53,605.50/120,871.50 = 120,871.50/x
  3. Step 3: Cross multiply
    53,605.50x = 120,871.50 × 120,871.50
  4. Step 4: Simplify right side
    53,605.50x = 14,609,919,512.25
  5. Step 5: Solve for x
    x = 14,609,919,512.25/53,605.50
  6. Step 6: Final answer
    x = 272,545.16

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.