Home / 71,328.43-107,003.04-21,412.45

Finding the Fourth Proportional to 71,328.43, 107,003.04 and 21,412.45

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Solution

The fourth proportional to 71,328.43, 107,003.04 and 21,412.45 is: 32,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.43 : 107,003.04 = 21,412.45 : x
  2. Step 2: Convert to fraction form
    71,328.43/107,003.04 = 21,412.45/x
  3. Step 3: Cross multiply
    71,328.43x = 107,003.04 × 21,412.45
  4. Step 4: Simplify right side
    71,328.43x = 2,291,197,243.85
  5. Step 5: Solve for x
    x = 2,291,197,243.85/71,328.43
  6. Step 6: Final answer
    x = 32,121.80

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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.