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Finding the Fourth Proportional to 65,724.60, 98,659.80 and 50,998.80

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Solution

The fourth proportional to 65,724.60, 98,659.80 and 50,998.80 is: 76,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,724.60 : 98,659.80 = 50,998.80 : x
  2. Step 2: Convert to fraction form
    65,724.60/98,659.80 = 50,998.80/x
  3. Step 3: Cross multiply
    65,724.60x = 98,659.80 × 50,998.80
  4. Step 4: Simplify right side
    65,724.60x = 5,031,531,408.24
  5. Step 5: Solve for x
    x = 5,031,531,408.24/65,724.60
  6. Step 6: Final answer
    x = 76,554.77

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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.