Home / 53,210.86-79,824.49-18,142.31

Finding the Fourth Proportional to 53,210.86, 79,824.49 and 18,142.31

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Solution

The fourth proportional to 53,210.86, 79,824.49 and 18,142.31 is: 27,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,210.86 : 79,824.49 = 18,142.31 : x
  2. Step 2: Convert to fraction form
    53,210.86/79,824.49 = 18,142.31/x
  3. Step 3: Cross multiply
    53,210.86x = 79,824.49 × 18,142.31
  4. Step 4: Simplify right side
    53,210.86x = 1,448,200,797.38
  5. Step 5: Solve for x
    x = 1,448,200,797.38/53,210.86
  6. Step 6: Final answer
    x = 27,216.26

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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.