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Finding the Fourth Proportional to 36,159.85, 54,231.03 and 13,959.07

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Solution

The fourth proportional to 36,159.85, 54,231.03 and 13,959.07 is: 20,935.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,159.85 : 54,231.03 = 13,959.07 : x
  2. Step 2: Convert to fraction form
    36,159.85/54,231.03 = 13,959.07/x
  3. Step 3: Cross multiply
    36,159.85x = 54,231.03 × 13,959.07
  4. Step 4: Simplify right side
    36,159.85x = 757,014,743.94
  5. Step 5: Solve for x
    x = 757,014,743.94/36,159.85
  6. Step 6: Final answer
    x = 20,935.23

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1.5x scale

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.