Home / 77,205.21-115,844.73-43,498.07

Finding the Fourth Proportional to 77,205.21, 115,844.73 and 43,498.07

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Solution

The fourth proportional to 77,205.21, 115,844.73 and 43,498.07 is: 65,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,205.21 : 115,844.73 = 43,498.07 : x
  2. Step 2: Convert to fraction form
    77,205.21/115,844.73 = 43,498.07/x
  3. Step 3: Cross multiply
    77,205.21x = 115,844.73 × 43,498.07
  4. Step 4: Simplify right side
    77,205.21x = 5,039,022,174.67
  5. Step 5: Solve for x
    x = 5,039,022,174.67/77,205.21
  6. Step 6: Final answer
    x = 65,267.90

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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.