Home / 66,656.44-91,976.97-42,815.44

Finding the Fourth Proportional to 66,656.44, 91,976.97 and 42,815.44

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Solution

The fourth proportional to 66,656.44, 91,976.97 and 42,815.44 is: 59,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,656.44 : 91,976.97 = 42,815.44 : x
  2. Step 2: Convert to fraction form
    66,656.44/91,976.97 = 42,815.44/x
  3. Step 3: Cross multiply
    66,656.44x = 91,976.97 × 42,815.44
  4. Step 4: Simplify right side
    66,656.44x = 3,938,034,440.42
  5. Step 5: Solve for x
    x = 3,938,034,440.42/66,656.44
  6. Step 6: Final answer
    x = 59,079.58

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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.