Home / 81,203.24-121,814.76-34,440.32

Finding the Fourth Proportional to 81,203.24, 121,814.76 and 34,440.32

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Solution

The fourth proportional to 81,203.24, 121,814.76 and 34,440.32 is: 51,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,203.24 : 121,814.76 = 34,440.32 : x
  2. Step 2: Convert to fraction form
    81,203.24/121,814.76 = 34,440.32/x
  3. Step 3: Cross multiply
    81,203.24x = 121,814.76 × 34,440.32
  4. Step 4: Simplify right side
    81,203.24x = 4,195,339,315.12
  5. Step 5: Solve for x
    x = 4,195,339,315.12/81,203.24
  6. Step 6: Final answer
    x = 51,664.68

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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.