Home / 55,556.71-76,666.30-31,691.01

Finding the Fourth Proportional to 55,556.71, 76,666.30 and 31,691.01

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Solution

The fourth proportional to 55,556.71, 76,666.30 and 31,691.01 is: 43,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,556.71 : 76,666.30 = 31,691.01 : x
  2. Step 2: Convert to fraction form
    55,556.71/76,666.30 = 31,691.01/x
  3. Step 3: Cross multiply
    55,556.71x = 76,666.30 × 31,691.01
  4. Step 4: Simplify right side
    55,556.71x = 2,429,632,479.96
  5. Step 5: Solve for x
    x = 2,429,632,479.96/55,556.71
  6. Step 6: Final answer
    x = 43,732.48

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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.