Home / 53,103.45-79,654.97-19,831.89

Finding the Fourth Proportional to 53,103.45, 79,654.97 and 19,831.89

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Solution

The fourth proportional to 53,103.45, 79,654.97 and 19,831.89 is: 29,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,103.45 : 79,654.97 = 19,831.89 : x
  2. Step 2: Convert to fraction form
    53,103.45/79,654.97 = 19,831.89/x
  3. Step 3: Cross multiply
    53,103.45x = 79,654.97 × 19,831.89
  4. Step 4: Simplify right side
    53,103.45x = 1,579,708,602.99
  5. Step 5: Solve for x
    x = 1,579,708,602.99/53,103.45
  6. Step 6: Final answer
    x = 29,747.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.