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Finding the Fourth Proportional to 65,456.57, 90,326.63 and 36,777.37

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Solution

The fourth proportional to 65,456.57, 90,326.63 and 36,777.37 is: 50,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,456.57 : 90,326.63 = 36,777.37 : x
  2. Step 2: Convert to fraction form
    65,456.57/90,326.63 = 36,777.37/x
  3. Step 3: Cross multiply
    65,456.57x = 90,326.63 × 36,777.37
  4. Step 4: Simplify right side
    65,456.57x = 3,321,975,622.09
  5. Step 5: Solve for x
    x = 3,321,975,622.09/65,456.57
  6. Step 6: Final answer
    x = 50,750.84

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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.