Home / 66,276.11-91,460.30-39,418.02

Finding the Fourth Proportional to 66,276.11, 91,460.30 and 39,418.02

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Solution

The fourth proportional to 66,276.11, 91,460.30 and 39,418.02 is: 54,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,276.11 : 91,460.30 = 39,418.02 : x
  2. Step 2: Convert to fraction form
    66,276.11/91,460.30 = 39,418.02/x
  3. Step 3: Cross multiply
    66,276.11x = 91,460.30 × 39,418.02
  4. Step 4: Simplify right side
    66,276.11x = 3,605,183,737.52
  5. Step 5: Solve for x
    x = 3,605,183,737.52/66,276.11
  6. Step 6: Final answer
    x = 54,396.43

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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.