Home / 77,813.24-107,377.38-43,819.75

Finding the Fourth Proportional to 77,813.24, 107,377.38 and 43,819.75

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Solution

The fourth proportional to 77,813.24, 107,377.38 and 43,819.75 is: 60,468.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.24 : 107,377.38 = 43,819.75 : x
  2. Step 2: Convert to fraction form
    77,813.24/107,377.38 = 43,819.75/x
  3. Step 3: Cross multiply
    77,813.24x = 107,377.38 × 43,819.75
  4. Step 4: Simplify right side
    77,813.24x = 4,705,250,081.48
  5. Step 5: Solve for x
    x = 4,705,250,081.48/77,813.24
  6. Step 6: Final answer
    x = 60,468.50

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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.