Home / 55,553.72-76,665.66-31,684.28

Finding the Fourth Proportional to 55,553.72, 76,665.66 and 31,684.28

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Solution

The fourth proportional to 55,553.72, 76,665.66 and 31,684.28 is: 43,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,553.72 : 76,665.66 = 31,684.28 : x
  2. Step 2: Convert to fraction form
    55,553.72/76,665.66 = 31,684.28/x
  3. Step 3: Cross multiply
    55,553.72x = 76,665.66 × 31,684.28
  4. Step 4: Simplify right side
    55,553.72x = 2,429,096,237.82
  5. Step 5: Solve for x
    x = 2,429,096,237.82/55,553.72
  6. Step 6: Final answer
    x = 43,725.18

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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.