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Finding the Fourth Proportional to 65,614.60, 98,437.48 and 21,241.36

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Solution

The fourth proportional to 65,614.60, 98,437.48 and 21,241.36 is: 31,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,614.60 : 98,437.48 = 21,241.36 : x
  2. Step 2: Convert to fraction form
    65,614.60/98,437.48 = 21,241.36/x
  3. Step 3: Cross multiply
    65,614.60x = 98,437.48 × 21,241.36
  4. Step 4: Simplify right side
    65,614.60x = 2,090,945,950.17
  5. Step 5: Solve for x
    x = 2,090,945,950.17/65,614.60
  6. Step 6: Final answer
    x = 31,867.08

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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.