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Finding the Third Proportional to 51,328.50 and 81,735

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Solution

The third proportional to 51,328.50 and 81,735 is: 130,154.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,328.50 : 81,735 = 81,735 : x
  2. Step 2: Convert to fraction form
    51,328.50/81,735 = 81,735/x
  3. Step 3: Cross multiply
    51,328.50x = 81,735 × 81,735
  4. Step 4: Simplify right side
    51,328.50x = 6,680,610,225
  5. Step 5: Solve for x
    x = 6,680,610,225/51,328.50
  6. Step 6: Final answer
    x = 130,154.01

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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.