Home / 55,055.75-75,983.30-51,677.87

Finding the Fourth Proportional to 55,055.75, 75,983.30 and 51,677.87

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Solution

The fourth proportional to 55,055.75, 75,983.30 and 51,677.87 is: 71,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,055.75 : 75,983.30 = 51,677.87 : x
  2. Step 2: Convert to fraction form
    55,055.75/75,983.30 = 51,677.87/x
  3. Step 3: Cross multiply
    55,055.75x = 75,983.30 × 51,677.87
  4. Step 4: Simplify right side
    55,055.75x = 3,926,654,848.85
  5. Step 5: Solve for x
    x = 3,926,654,848.85/55,055.75
  6. Step 6: Final answer
    x = 71,321.44

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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.