Home / 66,046.42-91,179.40-50,905.90

Finding the Fourth Proportional to 66,046.42, 91,179.40 and 50,905.90

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Solution

The fourth proportional to 66,046.42, 91,179.40 and 50,905.90 is: 70,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,046.42 : 91,179.40 = 50,905.90 : x
  2. Step 2: Convert to fraction form
    66,046.42/91,179.40 = 50,905.90/x
  3. Step 3: Cross multiply
    66,046.42x = 91,179.40 × 50,905.90
  4. Step 4: Simplify right side
    66,046.42x = 4,641,569,418.46
  5. Step 5: Solve for x
    x = 4,641,569,418.46/66,046.42
  6. Step 6: Final answer
    x = 70,277.38

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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.