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Finding the Fourth Proportional to 85,166.74, 117,530.11 and 49,377.52

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Solution

The fourth proportional to 85,166.74, 117,530.11 and 49,377.52 is: 68,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,166.74 : 117,530.11 = 49,377.52 : x
  2. Step 2: Convert to fraction form
    85,166.74/117,530.11 = 49,377.52/x
  3. Step 3: Cross multiply
    85,166.74x = 117,530.11 × 49,377.52
  4. Step 4: Simplify right side
    85,166.74x = 5,803,345,357.13
  5. Step 5: Solve for x
    x = 5,803,345,357.13/85,166.74
  6. Step 6: Final answer
    x = 68,140.98

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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.