Home / 66,830.43-92,192.58-39,965.88

Finding the Fourth Proportional to 66,830.43, 92,192.58 and 39,965.88

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Solution

The fourth proportional to 66,830.43, 92,192.58 and 39,965.88 is: 55,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,830.43 : 92,192.58 = 39,965.88 : x
  2. Step 2: Convert to fraction form
    66,830.43/92,192.58 = 39,965.88/x
  3. Step 3: Cross multiply
    66,830.43x = 92,192.58 × 39,965.88
  4. Step 4: Simplify right side
    66,830.43x = 3,684,557,589.17
  5. Step 5: Solve for x
    x = 3,684,557,589.17/66,830.43
  6. Step 6: Final answer
    x = 55,132.93

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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.