Home / 55,423.80-76,489.38-31,557.96

Finding the Fourth Proportional to 55,423.80, 76,489.38 and 31,557.96

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Solution

The fourth proportional to 55,423.80, 76,489.38 and 31,557.96 is: 43,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423.80 : 76,489.38 = 31,557.96 : x
  2. Step 2: Convert to fraction form
    55,423.80/76,489.38 = 31,557.96/x
  3. Step 3: Cross multiply
    55,423.80x = 76,489.38 × 31,557.96
  4. Step 4: Simplify right side
    55,423.80x = 2,413,848,794.46
  5. Step 5: Solve for x
    x = 2,413,848,794.46/55,423.80
  6. Step 6: Final answer
    x = 43,552.57

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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.