Home / 53,989.76-81,000.20-16,555.35

Finding the Fourth Proportional to 53,989.76, 81,000.20 and 16,555.35

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Solution

The fourth proportional to 53,989.76, 81,000.20 and 16,555.35 is: 24,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.76 : 81,000.20 = 16,555.35 : x
  2. Step 2: Convert to fraction form
    53,989.76/81,000.20 = 16,555.35/x
  3. Step 3: Cross multiply
    53,989.76x = 81,000.20 × 16,555.35
  4. Step 4: Simplify right side
    53,989.76x = 1,340,986,578.29
  5. Step 5: Solve for x
    x = 1,340,986,578.29/53,989.76
  6. Step 6: Final answer
    x = 24,837.79

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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.