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Finding the Third Proportional to 49,207.50 and 78,336

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Solution

The third proportional to 49,207.50 and 78,336 is: 124,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,207.50 : 78,336 = 78,336 : x
  2. Step 2: Convert to fraction form
    49,207.50/78,336 = 78,336/x
  3. Step 3: Cross multiply
    49,207.50x = 78,336 × 78,336
  4. Step 4: Simplify right side
    49,207.50x = 6,136,528,896
  5. Step 5: Solve for x
    x = 6,136,528,896/49,207.50
  6. Step 6: Final answer
    x = 124,707.19

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.