Home / 53,078.88-79,632-38,103.36

Finding the Fourth Proportional to 53,078.88, 79,632 and 38,103.36

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Solution

The fourth proportional to 53,078.88, 79,632 and 38,103.36 is: 57,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.88 : 79,632 = 38,103.36 : x
  2. Step 2: Convert to fraction form
    53,078.88/79,632 = 38,103.36/x
  3. Step 3: Cross multiply
    53,078.88x = 79,632 × 38,103.36
  4. Step 4: Simplify right side
    53,078.88x = 3,034,246,763.52
  5. Step 5: Solve for x
    x = 3,034,246,763.52/53,078.88
  6. Step 6: Final answer
    x = 57,164.86

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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.