Home / 55,239.66-76,231.62-31,366.98

Finding the Fourth Proportional to 55,239.66, 76,231.62 and 31,366.98

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Solution

The fourth proportional to 55,239.66, 76,231.62 and 31,366.98 is: 43,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.66 : 76,231.62 = 31,366.98 : x
  2. Step 2: Convert to fraction form
    55,239.66/76,231.62 = 31,366.98/x
  3. Step 3: Cross multiply
    55,239.66x = 76,231.62 × 31,366.98
  4. Step 4: Simplify right side
    55,239.66x = 2,391,155,699.91
  5. Step 5: Solve for x
    x = 2,391,155,699.91/55,239.66
  6. Step 6: Final answer
    x = 43,286.94

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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.