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Finding the Third Proportional to 55,610 and 81,470

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Solution

The third proportional to 55,610 and 81,470 is: 119,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,610 : 81,470 = 81,470 : x
  2. Step 2: Convert to fraction form
    55,610/81,470 = 81,470/x
  3. Step 3: Cross multiply
    55,610x = 81,470 × 81,470
  4. Step 4: Simplify right side
    55,610x = 6,637,360,900
  5. Step 5: Solve for x
    x = 6,637,360,900/55,610
  6. Step 6: Final answer
    x = 119,355.53

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.