Home / 77,919.63-116,908.60-40,456.32

Finding the Fourth Proportional to 77,919.63, 116,908.60 and 40,456.32

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Solution

The fourth proportional to 77,919.63, 116,908.60 and 40,456.32 is: 60,699.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,919.63 : 116,908.60 = 40,456.32 : x
  2. Step 2: Convert to fraction form
    77,919.63/116,908.60 = 40,456.32/x
  3. Step 3: Cross multiply
    77,919.63x = 116,908.60 × 40,456.32
  4. Step 4: Simplify right side
    77,919.63x = 4,729,691,732.35
  5. Step 5: Solve for x
    x = 4,729,691,732.35/77,919.63
  6. Step 6: Final answer
    x = 60,699.62

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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.