Home / 53,991.42-80,979.72-14,550.90

Finding the Fourth Proportional to 53,991.42, 80,979.72 and 14,550.90

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Solution

The fourth proportional to 53,991.42, 80,979.72 and 14,550.90 is: 21,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,991.42 : 80,979.72 = 14,550.90 : x
  2. Step 2: Convert to fraction form
    53,991.42/80,979.72 = 14,550.90/x
  3. Step 3: Cross multiply
    53,991.42x = 80,979.72 × 14,550.90
  4. Step 4: Simplify right side
    53,991.42x = 1,178,327,807.75
  5. Step 5: Solve for x
    x = 1,178,327,807.75/53,991.42
  6. Step 6: Final answer
    x = 21,824.35

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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.