Home / 66,729.87-92,083.68-36,509.31

Finding the Fourth Proportional to 66,729.87, 92,083.68 and 36,509.31

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Solution

The fourth proportional to 66,729.87, 92,083.68 and 36,509.31 is: 50,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,729.87 : 92,083.68 = 36,509.31 : x
  2. Step 2: Convert to fraction form
    66,729.87/92,083.68 = 36,509.31/x
  3. Step 3: Cross multiply
    66,729.87x = 92,083.68 × 36,509.31
  4. Step 4: Simplify right side
    66,729.87x = 3,361,911,619.06
  5. Step 5: Solve for x
    x = 3,361,911,619.06/66,729.87
  6. Step 6: Final answer
    x = 50,380.91

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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.