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Finding the Fourth Proportional to 66,352.61, 91,563.73 and 36,137.99

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Solution

The fourth proportional to 66,352.61, 91,563.73 and 36,137.99 is: 49,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.61 : 91,563.73 = 36,137.99 : x
  2. Step 2: Convert to fraction form
    66,352.61/91,563.73 = 36,137.99/x
  3. Step 3: Cross multiply
    66,352.61x = 91,563.73 × 36,137.99
  4. Step 4: Simplify right side
    66,352.61x = 3,308,929,159.10
  5. Step 5: Solve for x
    x = 3,308,929,159.10/66,352.61
  6. Step 6: Final answer
    x = 49,868.86

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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.