Home / 51,623.19-71,247.29-30,120.03

Finding the Fourth Proportional to 51,623.19, 71,247.29 and 30,120.03

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Solution

The fourth proportional to 51,623.19, 71,247.29 and 30,120.03 is: 41,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,623.19 : 71,247.29 = 30,120.03 : x
  2. Step 2: Convert to fraction form
    51,623.19/71,247.29 = 30,120.03/x
  3. Step 3: Cross multiply
    51,623.19x = 71,247.29 × 30,120.03
  4. Step 4: Simplify right side
    51,623.19x = 2,145,970,361.62
  5. Step 5: Solve for x
    x = 2,145,970,361.62/51,623.19
  6. Step 6: Final answer
    x = 41,569.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.