Home / 85,148.82-117,487.40-49,336.66

Finding the Fourth Proportional to 85,148.82, 117,487.40 and 49,336.66

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Solution

The fourth proportional to 85,148.82, 117,487.40 and 49,336.66 is: 68,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.82 : 117,487.40 = 49,336.66 : x
  2. Step 2: Convert to fraction form
    85,148.82/117,487.40 = 49,336.66/x
  3. Step 3: Cross multiply
    85,148.82x = 117,487.40 × 49,336.66
  4. Step 4: Simplify right side
    85,148.82x = 5,796,435,908.08
  5. Step 5: Solve for x
    x = 5,796,435,908.08/85,148.82
  6. Step 6: Final answer
    x = 68,074.18

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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.