Home / 77,550.32-116,383.44-30,172.88

Finding the Fourth Proportional to 77,550.32, 116,383.44 and 30,172.88

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Solution

The fourth proportional to 77,550.32, 116,383.44 and 30,172.88 is: 45,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,550.32 : 116,383.44 = 30,172.88 : x
  2. Step 2: Convert to fraction form
    77,550.32/116,383.44 = 30,172.88/x
  3. Step 3: Cross multiply
    77,550.32x = 116,383.44 × 30,172.88
  4. Step 4: Simplify right side
    77,550.32x = 3,511,623,569.11
  5. Step 5: Solve for x
    x = 3,511,623,569.11/77,550.32
  6. Step 6: Final answer
    x = 45,281.87

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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.