Home / 53,435.08-80,149.38-13,991.32

Finding the Fourth Proportional to 53,435.08, 80,149.38 and 13,991.32

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Solution

The fourth proportional to 53,435.08, 80,149.38 and 13,991.32 is: 20,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,435.08 : 80,149.38 = 13,991.32 : x
  2. Step 2: Convert to fraction form
    53,435.08/80,149.38 = 13,991.32/x
  3. Step 3: Cross multiply
    53,435.08x = 80,149.38 × 13,991.32
  4. Step 4: Simplify right side
    53,435.08x = 1,121,395,623.38
  5. Step 5: Solve for x
    x = 1,121,395,623.38/53,435.08
  6. Step 6: Final answer
    x = 20,986.13

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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.