Home / 77,939.76-107,550.36-43,956.60

Finding the Fourth Proportional to 77,939.76, 107,550.36 and 43,956.60

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Solution

The fourth proportional to 77,939.76, 107,550.36 and 43,956.60 is: 60,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,939.76 : 107,550.36 = 43,956.60 : x
  2. Step 2: Convert to fraction form
    77,939.76/107,550.36 = 43,956.60/x
  3. Step 3: Cross multiply
    77,939.76x = 107,550.36 × 43,956.60
  4. Step 4: Simplify right side
    77,939.76x = 4,727,548,154.38
  5. Step 5: Solve for x
    x = 4,727,548,154.38/77,939.76
  6. Step 6: Final answer
    x = 60,656.44

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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.