Home / 82,364.43-123,647.64-54,307.95

Finding the Fourth Proportional to 82,364.43, 123,647.64 and 54,307.95

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Solution

The fourth proportional to 82,364.43, 123,647.64 and 54,307.95 is: 81,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,364.43 : 123,647.64 = 54,307.95 : x
  2. Step 2: Convert to fraction form
    82,364.43/123,647.64 = 54,307.95/x
  3. Step 3: Cross multiply
    82,364.43x = 123,647.64 × 54,307.95
  4. Step 4: Simplify right side
    82,364.43x = 6,715,049,850.74
  5. Step 5: Solve for x
    x = 6,715,049,850.74/82,364.43
  6. Step 6: Final answer
    x = 81,528.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.