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Finding the Fourth Proportional to 66,253.41, 91,430.37 and 36,039.47

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Solution

The fourth proportional to 66,253.41, 91,430.37 and 36,039.47 is: 49,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,253.41 : 91,430.37 = 36,039.47 : x
  2. Step 2: Convert to fraction form
    66,253.41/91,430.37 = 36,039.47/x
  3. Step 3: Cross multiply
    66,253.41x = 91,430.37 × 36,039.47
  4. Step 4: Simplify right side
    66,253.41x = 3,295,101,619.55
  5. Step 5: Solve for x
    x = 3,295,101,619.55/66,253.41
  6. Step 6: Final answer
    x = 49,734.82

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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.