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Finding the Fourth Proportional to 65,667.60, 98,508.24 and 21,292.56

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Solution

The fourth proportional to 65,667.60, 98,508.24 and 21,292.56 is: 31,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,667.60 : 98,508.24 = 21,292.56 : x
  2. Step 2: Convert to fraction form
    65,667.60/98,508.24 = 21,292.56/x
  3. Step 3: Cross multiply
    65,667.60x = 98,508.24 × 21,292.56
  4. Step 4: Simplify right side
    65,667.60x = 2,097,492,610.69
  5. Step 5: Solve for x
    x = 2,097,492,610.69/65,667.60
  6. Step 6: Final answer
    x = 31,941.06

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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.