Home / 76,904.80-106,129.92-43,371.52

Finding the Fourth Proportional to 76,904.80, 106,129.92 and 43,371.52

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Solution

The fourth proportional to 76,904.80, 106,129.92 and 43,371.52 is: 59,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,904.80 : 106,129.92 = 43,371.52 : x
  2. Step 2: Convert to fraction form
    76,904.80/106,129.92 = 43,371.52/x
  3. Step 3: Cross multiply
    76,904.80x = 106,129.92 × 43,371.52
  4. Step 4: Simplify right side
    76,904.80x = 4,603,015,947.88
  5. Step 5: Solve for x
    x = 4,603,015,947.88/76,904.80
  6. Step 6: Final answer
    x = 59,853.43

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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.