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Finding the Fourth Proportional to 82,415.53, 113,732.94 and 44,689.78

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Solution

The fourth proportional to 82,415.53, 113,732.94 and 44,689.78 is: 61,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,415.53 : 113,732.94 = 44,689.78 : x
  2. Step 2: Convert to fraction form
    82,415.53/113,732.94 = 44,689.78/x
  3. Step 3: Cross multiply
    82,415.53x = 113,732.94 × 44,689.78
  4. Step 4: Simplify right side
    82,415.53x = 5,082,700,067.35
  5. Step 5: Solve for x
    x = 5,082,700,067.35/82,415.53
  6. Step 6: Final answer
    x = 61,671.63

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1.5x scale

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.