Home / 53,923.90-80,857.05-18,864.70

Finding the Fourth Proportional to 53,923.90, 80,857.05 and 18,864.70

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Solution

The fourth proportional to 53,923.90, 80,857.05 and 18,864.70 is: 28,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,923.90 : 80,857.05 = 18,864.70 : x
  2. Step 2: Convert to fraction form
    53,923.90/80,857.05 = 18,864.70/x
  3. Step 3: Cross multiply
    53,923.90x = 80,857.05 × 18,864.70
  4. Step 4: Simplify right side
    53,923.90x = 1,525,343,991.14
  5. Step 5: Solve for x
    x = 1,525,343,991.14/53,923.90
  6. Step 6: Final answer
    x = 28,286.97

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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.