Home / 77,474.48-116,198.96-72,431.01

Finding the Fourth Proportional to 77,474.48, 116,198.96 and 72,431.01

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Solution

The fourth proportional to 77,474.48, 116,198.96 and 72,431.01 is: 108,634.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,474.48 : 116,198.96 = 72,431.01 : x
  2. Step 2: Convert to fraction form
    77,474.48/116,198.96 = 72,431.01/x
  3. Step 3: Cross multiply
    77,474.48x = 116,198.96 × 72,431.01
  4. Step 4: Simplify right side
    77,474.48x = 8,416,407,671.59
  5. Step 5: Solve for x
    x = 8,416,407,671.59/77,474.48
  6. Step 6: Final answer
    x = 108,634.59

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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.