Home / 85,107.08-117,429.95-49,294.96

Finding the Fourth Proportional to 85,107.08, 117,429.95 and 49,294.96

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Solution

The fourth proportional to 85,107.08, 117,429.95 and 49,294.96 is: 68,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.08 : 117,429.95 = 49,294.96 : x
  2. Step 2: Convert to fraction form
    85,107.08/117,429.95 = 49,294.96/x
  3. Step 3: Cross multiply
    85,107.08x = 117,429.95 × 49,294.96
  4. Step 4: Simplify right side
    85,107.08x = 5,788,704,517.71
  5. Step 5: Solve for x
    x = 5,788,704,517.71/85,107.08
  6. Step 6: Final answer
    x = 68,016.72

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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.