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Finding the Fourth Proportional to 65,250.52, 97,890.36 and 20,879.93

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Solution

The fourth proportional to 65,250.52, 97,890.36 and 20,879.93 is: 31,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,250.52 : 97,890.36 = 20,879.93 : x
  2. Step 2: Convert to fraction form
    65,250.52/97,890.36 = 20,879.93/x
  3. Step 3: Cross multiply
    65,250.52x = 97,890.36 × 20,879.93
  4. Step 4: Simplify right side
    65,250.52x = 2,043,944,109.20
  5. Step 5: Solve for x
    x = 2,043,944,109.20/65,250.52
  6. Step 6: Final answer
    x = 31,324.57

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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.