Home / 55,564.62-76,678.40-31,691.69

Finding the Fourth Proportional to 55,564.62, 76,678.40 and 31,691.69

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Solution

The fourth proportional to 55,564.62, 76,678.40 and 31,691.69 is: 43,734.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,564.62 : 76,678.40 = 31,691.69 : x
  2. Step 2: Convert to fraction form
    55,564.62/76,678.40 = 31,691.69/x
  3. Step 3: Cross multiply
    55,564.62x = 76,678.40 × 31,691.69
  4. Step 4: Simplify right side
    55,564.62x = 2,430,067,924.04
  5. Step 5: Solve for x
    x = 2,430,067,924.04/55,564.62
  6. Step 6: Final answer
    x = 43,734.09

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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.