Home / 81,267.13-112,160.61-49,429.87

Finding the Fourth Proportional to 81,267.13, 112,160.61 and 49,429.87

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Solution

The fourth proportional to 81,267.13, 112,160.61 and 49,429.87 is: 68,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.13 : 112,160.61 = 49,429.87 : x
  2. Step 2: Convert to fraction form
    81,267.13/112,160.61 = 49,429.87/x
  3. Step 3: Cross multiply
    81,267.13x = 112,160.61 × 49,429.87
  4. Step 4: Simplify right side
    81,267.13x = 5,544,084,371.42
  5. Step 5: Solve for x
    x = 5,544,084,371.42/81,267.13
  6. Step 6: Final answer
    x = 68,220.50

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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.