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Finding the Third Proportional to 45,423 and 68,539.50

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Solution

The third proportional to 45,423 and 68,539.50 is: 103,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,423 : 68,539.50 = 68,539.50 : x
  2. Step 2: Convert to fraction form
    45,423/68,539.50 = 68,539.50/x
  3. Step 3: Cross multiply
    45,423x = 68,539.50 × 68,539.50
  4. Step 4: Simplify right side
    45,423x = 4,697,663,060.25
  5. Step 5: Solve for x
    x = 4,697,663,060.25/45,423
  6. Step 6: Final answer
    x = 103,420.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.