Home / 55,940.18-77,198.86-30,447.92

Finding the Fourth Proportional to 55,940.18, 77,198.86 and 30,447.92

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Solution

The fourth proportional to 55,940.18, 77,198.86 and 30,447.92 is: 42,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.18 : 77,198.86 = 30,447.92 : x
  2. Step 2: Convert to fraction form
    55,940.18/77,198.86 = 30,447.92/x
  3. Step 3: Cross multiply
    55,940.18x = 77,198.86 × 30,447.92
  4. Step 4: Simplify right side
    55,940.18x = 2,350,544,713.37
  5. Step 5: Solve for x
    x = 2,350,544,713.37/55,940.18
  6. Step 6: Final answer
    x = 42,018.90

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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.