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Finding the Fourth Proportional to 65,914.56, 98,884.56 and 21,529.38

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Solution

The fourth proportional to 65,914.56, 98,884.56 and 21,529.38 is: 32,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,914.56 : 98,884.56 = 21,529.38 : x
  2. Step 2: Convert to fraction form
    65,914.56/98,884.56 = 21,529.38/x
  3. Step 3: Cross multiply
    65,914.56x = 98,884.56 × 21,529.38
  4. Step 4: Simplify right side
    65,914.56x = 2,128,923,268.37
  5. Step 5: Solve for x
    x = 2,128,923,268.37/65,914.56
  6. Step 6: Final answer
    x = 32,298.22

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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.