Home / 77,965.08-117,134.88-49,939.57

Finding the Fourth Proportional to 77,965.08, 117,134.88 and 49,939.57

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Solution

The fourth proportional to 77,965.08, 117,134.88 and 49,939.57 is: 75,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.08 : 117,134.88 = 49,939.57 : x
  2. Step 2: Convert to fraction form
    77,965.08/117,134.88 = 49,939.57/x
  3. Step 3: Cross multiply
    77,965.08x = 117,134.88 × 49,939.57
  4. Step 4: Simplify right side
    77,965.08x = 5,849,665,539.20
  5. Step 5: Solve for x
    x = 5,849,665,539.20/77,965.08
  6. Step 6: Final answer
    x = 75,029.30

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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.