Home / 81,029.05-111,869.36-55,577.23

Finding the Fourth Proportional to 81,029.05, 111,869.36 and 55,577.23

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Solution

The fourth proportional to 81,029.05, 111,869.36 and 55,577.23 is: 76,730.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029.05 : 111,869.36 = 55,577.23 : x
  2. Step 2: Convert to fraction form
    81,029.05/111,869.36 = 55,577.23/x
  3. Step 3: Cross multiply
    81,029.05x = 111,869.36 × 55,577.23
  4. Step 4: Simplify right side
    81,029.05x = 6,217,389,150.67
  5. Step 5: Solve for x
    x = 6,217,389,150.67/81,029.05
  6. Step 6: Final answer
    x = 76,730.37

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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.