Home / 77,355.29-116,033.04-21,195.90

Finding the Fourth Proportional to 77,355.29, 116,033.04 and 21,195.90

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Solution

The fourth proportional to 77,355.29, 116,033.04 and 21,195.90 is: 31,793.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,355.29 : 116,033.04 = 21,195.90 : x
  2. Step 2: Convert to fraction form
    77,355.29/116,033.04 = 21,195.90/x
  3. Step 3: Cross multiply
    77,355.29x = 116,033.04 × 21,195.90
  4. Step 4: Simplify right side
    77,355.29x = 2,459,424,712.54
  5. Step 5: Solve for x
    x = 2,459,424,712.54/77,355.29
  6. Step 6: Final answer
    x = 31,793.88

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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.