Home / 53,981.72-80,969.66-16,541.90

Finding the Fourth Proportional to 53,981.72, 80,969.66 and 16,541.90

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Solution

The fourth proportional to 53,981.72, 80,969.66 and 16,541.90 is: 24,811.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.72 : 80,969.66 = 16,541.90 : x
  2. Step 2: Convert to fraction form
    53,981.72/80,969.66 = 16,541.90/x
  3. Step 3: Cross multiply
    53,981.72x = 80,969.66 × 16,541.90
  4. Step 4: Simplify right side
    53,981.72x = 1,339,392,018.75
  5. Step 5: Solve for x
    x = 1,339,392,018.75/53,981.72
  6. Step 6: Final answer
    x = 24,811.96

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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.