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Finding the Fourth Proportional to 65,804.20, 90,809.79 and 35,589.52

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Solution

The fourth proportional to 65,804.20, 90,809.79 and 35,589.52 is: 49,113.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,804.20 : 90,809.79 = 35,589.52 : x
  2. Step 2: Convert to fraction form
    65,804.20/90,809.79 = 35,589.52/x
  3. Step 3: Cross multiply
    65,804.20x = 90,809.79 × 35,589.52
  4. Step 4: Simplify right side
    65,804.20x = 3,231,876,837.40
  5. Step 5: Solve for x
    x = 3,231,876,837.40/65,804.20
  6. Step 6: Final answer
    x = 49,113.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.