Home / 81,806.24-112,857.36-51,567.68

Finding the Fourth Proportional to 81,806.24, 112,857.36 and 51,567.68

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Solution

The fourth proportional to 81,806.24, 112,857.36 and 51,567.68 is: 71,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,806.24 : 112,857.36 = 51,567.68 : x
  2. Step 2: Convert to fraction form
    81,806.24/112,857.36 = 51,567.68/x
  3. Step 3: Cross multiply
    81,806.24x = 112,857.36 × 51,567.68
  4. Step 4: Simplify right side
    81,806.24x = 5,819,792,226.12
  5. Step 5: Solve for x
    x = 5,819,792,226.12/81,806.24
  6. Step 6: Final answer
    x = 71,141.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.