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Finding the Fourth Proportional to 65,879.43, 98,807.94 and 18,483.63

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Solution

The fourth proportional to 65,879.43, 98,807.94 and 18,483.63 is: 27,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,879.43 : 98,807.94 = 18,483.63 : x
  2. Step 2: Convert to fraction form
    65,879.43/98,807.94 = 18,483.63/x
  3. Step 3: Cross multiply
    65,879.43x = 98,807.94 × 18,483.63
  4. Step 4: Simplify right side
    65,879.43x = 1,826,329,404.02
  5. Step 5: Solve for x
    x = 1,826,329,404.02/65,879.43
  6. Step 6: Final answer
    x = 27,722.30

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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.