Home / 53,238.22-79,861.92-19,513.40

Finding the Fourth Proportional to 53,238.22, 79,861.92 and 19,513.40

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Solution

The fourth proportional to 53,238.22, 79,861.92 and 19,513.40 is: 29,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,238.22 : 79,861.92 = 19,513.40 : x
  2. Step 2: Convert to fraction form
    53,238.22/79,861.92 = 19,513.40/x
  3. Step 3: Cross multiply
    53,238.22x = 79,861.92 × 19,513.40
  4. Step 4: Simplify right side
    53,238.22x = 1,558,377,589.73
  5. Step 5: Solve for x
    x = 1,558,377,589.73/53,238.22
  6. Step 6: Final answer
    x = 29,271.78

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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.