Home / 55,011.45-75,910.55-43,708.31

Finding the Fourth Proportional to 55,011.45, 75,910.55 and 43,708.31

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Solution

The fourth proportional to 55,011.45, 75,910.55 and 43,708.31 is: 60,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,011.45 : 75,910.55 = 43,708.31 : x
  2. Step 2: Convert to fraction form
    55,011.45/75,910.55 = 43,708.31/x
  3. Step 3: Cross multiply
    55,011.45x = 75,910.55 × 43,708.31
  4. Step 4: Simplify right side
    55,011.45x = 3,317,921,472.12
  5. Step 5: Solve for x
    x = 3,317,921,472.12/55,011.45
  6. Step 6: Final answer
    x = 60,313.29

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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.