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Finding the Third Proportional to 53,632 and 78,899

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Solution

The third proportional to 53,632 and 78,899 is: 116,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,632 : 78,899 = 78,899 : x
  2. Step 2: Convert to fraction form
    53,632/78,899 = 78,899/x
  3. Step 3: Cross multiply
    53,632x = 78,899 × 78,899
  4. Step 4: Simplify right side
    53,632x = 6,225,052,201
  5. Step 5: Solve for x
    x = 6,225,052,201/53,632
  6. Step 6: Final answer
    x = 116,069.74

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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.