Home / 53,211.86-79,825.99-18,143.31

Finding the Fourth Proportional to 53,211.86, 79,825.99 and 18,143.31

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Solution

The fourth proportional to 53,211.86, 79,825.99 and 18,143.31 is: 27,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,211.86 : 79,825.99 = 18,143.31 : x
  2. Step 2: Convert to fraction form
    53,211.86/79,825.99 = 18,143.31/x
  3. Step 3: Cross multiply
    53,211.86x = 79,825.99 × 18,143.31
  4. Step 4: Simplify right side
    53,211.86x = 1,448,307,682.63
  5. Step 5: Solve for x
    x = 1,448,307,682.63/53,211.86
  6. Step 6: Final answer
    x = 27,217.76

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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.