Home / 55,215.57-76,198.41-31,342.98

Finding the Fourth Proportional to 55,215.57, 76,198.41 and 31,342.98

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Solution

The fourth proportional to 55,215.57, 76,198.41 and 31,342.98 is: 43,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.57 : 76,198.41 = 31,342.98 : x
  2. Step 2: Convert to fraction form
    55,215.57/76,198.41 = 31,342.98/x
  3. Step 3: Cross multiply
    55,215.57x = 76,198.41 × 31,342.98
  4. Step 4: Simplify right side
    55,215.57x = 2,388,285,240.66
  5. Step 5: Solve for x
    x = 2,388,285,240.66/55,215.57
  6. Step 6: Final answer
    x = 43,253.84

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1.5x scale

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.