Home / 80,052.48-120,081.96-30,127.32

Finding the Fourth Proportional to 80,052.48, 120,081.96 and 30,127.32

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Solution

The fourth proportional to 80,052.48, 120,081.96 and 30,127.32 is: 45,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,052.48 : 120,081.96 = 30,127.32 : x
  2. Step 2: Convert to fraction form
    80,052.48/120,081.96 = 30,127.32/x
  3. Step 3: Cross multiply
    80,052.48x = 120,081.96 × 30,127.32
  4. Step 4: Simplify right side
    80,052.48x = 3,617,747,635.15
  5. Step 5: Solve for x
    x = 3,617,747,635.15/80,052.48
  6. Step 6: Final answer
    x = 45,192.20

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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.