Home / 53,104.22-79,670-15,662.78

Finding the Fourth Proportional to 53,104.22, 79,670 and 15,662.78

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Solution

The fourth proportional to 53,104.22, 79,670 and 15,662.78 is: 23,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,104.22 : 79,670 = 15,662.78 : x
  2. Step 2: Convert to fraction form
    53,104.22/79,670 = 15,662.78/x
  3. Step 3: Cross multiply
    53,104.22x = 79,670 × 15,662.78
  4. Step 4: Simplify right side
    53,104.22x = 1,247,853,682.60
  5. Step 5: Solve for x
    x = 1,247,853,682.60/53,104.22
  6. Step 6: Final answer
    x = 23,498.20

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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.