Home / 77,939.38-107,557.48-43,949.50

Finding the Fourth Proportional to 77,939.38, 107,557.48 and 43,949.50

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Solution

The fourth proportional to 77,939.38, 107,557.48 and 43,949.50 is: 60,650.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,939.38 : 107,557.48 = 43,949.50 : x
  2. Step 2: Convert to fraction form
    77,939.38/107,557.48 = 43,949.50/x
  3. Step 3: Cross multiply
    77,939.38x = 107,557.48 × 43,949.50
  4. Step 4: Simplify right side
    77,939.38x = 4,727,097,467.26
  5. Step 5: Solve for x
    x = 4,727,097,467.26/77,939.38
  6. Step 6: Final answer
    x = 60,650.95

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1.5x scale

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.