Home / 85,311.58-117,732.49-47,585.02

Finding the Fourth Proportional to 85,311.58, 117,732.49 and 47,585.02

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Solution

The fourth proportional to 85,311.58, 117,732.49 and 47,585.02 is: 65,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.58 : 117,732.49 = 47,585.02 : x
  2. Step 2: Convert to fraction form
    85,311.58/117,732.49 = 47,585.02/x
  3. Step 3: Cross multiply
    85,311.58x = 117,732.49 × 47,585.02
  4. Step 4: Simplify right side
    85,311.58x = 5,602,302,891.30
  5. Step 5: Solve for x
    x = 5,602,302,891.30/85,311.58
  6. Step 6: Final answer
    x = 65,668.73

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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.