Home / 53,310.20-79,943.70-18,231.80

Finding the Fourth Proportional to 53,310.20, 79,943.70 and 18,231.80

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Solution

The fourth proportional to 53,310.20, 79,943.70 and 18,231.80 is: 27,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310.20 : 79,943.70 = 18,231.80 : x
  2. Step 2: Convert to fraction form
    53,310.20/79,943.70 = 18,231.80/x
  3. Step 3: Cross multiply
    53,310.20x = 79,943.70 × 18,231.80
  4. Step 4: Simplify right side
    53,310.20x = 1,457,517,549.66
  5. Step 5: Solve for x
    x = 1,457,517,549.66/53,310.20
  6. Step 6: Final answer
    x = 27,340.31

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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.