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Finding the Third Proportional to 54,607 and 86,829.50

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Solution

The third proportional to 54,607 and 86,829.50 is: 138,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,607 : 86,829.50 = 86,829.50 : x
  2. Step 2: Convert to fraction form
    54,607/86,829.50 = 86,829.50/x
  3. Step 3: Cross multiply
    54,607x = 86,829.50 × 86,829.50
  4. Step 4: Simplify right side
    54,607x = 7,539,362,070.25
  5. Step 5: Solve for x
    x = 7,539,362,070.25/54,607
  6. Step 6: Final answer
    x = 138,065.85

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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.