Home / 53,179.86-73,387.26-28,981.05

Finding the Fourth Proportional to 53,179.86, 73,387.26 and 28,981.05

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Solution

The fourth proportional to 53,179.86, 73,387.26 and 28,981.05 is: 39,993.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.86 : 73,387.26 = 28,981.05 : x
  2. Step 2: Convert to fraction form
    53,179.86/73,387.26 = 28,981.05/x
  3. Step 3: Cross multiply
    53,179.86x = 73,387.26 × 28,981.05
  4. Step 4: Simplify right side
    53,179.86x = 2,126,839,576.22
  5. Step 5: Solve for x
    x = 2,126,839,576.22/53,179.86
  6. Step 6: Final answer
    x = 39,993.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.