Home / 77,869.32-107,458.38-43,881.28

Finding the Fourth Proportional to 77,869.32, 107,458.38 and 43,881.28

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Solution

The fourth proportional to 77,869.32, 107,458.38 and 43,881.28 is: 60,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,869.32 : 107,458.38 = 43,881.28 : x
  2. Step 2: Convert to fraction form
    77,869.32/107,458.38 = 43,881.28/x
  3. Step 3: Cross multiply
    77,869.32x = 107,458.38 × 43,881.28
  4. Step 4: Simplify right side
    77,869.32x = 4,715,410,992.48
  5. Step 5: Solve for x
    x = 4,715,410,992.48/77,869.32
  6. Step 6: Final answer
    x = 60,555.44

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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.