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Finding the Fourth Proportional to 65,917.80, 98,875.80 and 15,997.50

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Solution

The fourth proportional to 65,917.80, 98,875.80 and 15,997.50 is: 23,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917.80 : 98,875.80 = 15,997.50 : x
  2. Step 2: Convert to fraction form
    65,917.80/98,875.80 = 15,997.50/x
  3. Step 3: Cross multiply
    65,917.80x = 98,875.80 × 15,997.50
  4. Step 4: Simplify right side
    65,917.80x = 1,581,765,610.50
  5. Step 5: Solve for x
    x = 1,581,765,610.50/65,917.80
  6. Step 6: Final answer
    x = 23,996.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.