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Finding the Fourth Proportional to 36,108.40, 54,119.40 and 18,569.20

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Solution

The fourth proportional to 36,108.40, 54,119.40 and 18,569.20 is: 27,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,108.40 : 54,119.40 = 18,569.20 : x
  2. Step 2: Convert to fraction form
    36,108.40/54,119.40 = 18,569.20/x
  3. Step 3: Cross multiply
    36,108.40x = 54,119.40 × 18,569.20
  4. Step 4: Simplify right side
    36,108.40x = 1,004,953,962.48
  5. Step 5: Solve for x
    x = 1,004,953,962.48/36,108.40
  6. Step 6: Final answer
    x = 27,831.58

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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.