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Finding the Fourth Proportional to 65,997.62, 98,994.78 and 19,250.90

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Solution

The fourth proportional to 65,997.62, 98,994.78 and 19,250.90 is: 28,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,997.62 : 98,994.78 = 19,250.90 : x
  2. Step 2: Convert to fraction form
    65,997.62/98,994.78 = 19,250.90/x
  3. Step 3: Cross multiply
    65,997.62x = 98,994.78 × 19,250.90
  4. Step 4: Simplify right side
    65,997.62x = 1,905,738,610.30
  5. Step 5: Solve for x
    x = 1,905,738,610.30/65,997.62
  6. Step 6: Final answer
    x = 28,875.87

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1.5x scale

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.