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Finding the Fourth Proportional to 65,893.73, 98,846.66 and 21,520.71

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Solution

The fourth proportional to 65,893.73, 98,846.66 and 21,520.71 is: 32,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.73 : 98,846.66 = 21,520.71 : x
  2. Step 2: Convert to fraction form
    65,893.73/98,846.66 = 21,520.71/x
  3. Step 3: Cross multiply
    65,893.73x = 98,846.66 × 21,520.71
  4. Step 4: Simplify right side
    65,893.73x = 2,127,250,196.73
  5. Step 5: Solve for x
    x = 2,127,250,196.73/65,893.73
  6. Step 6: Final answer
    x = 32,283.05

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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.