Home / 73,019.85-109,517.36-20,417.10

Finding the Fourth Proportional to 73,019.85, 109,517.36 and 20,417.10

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Solution

The fourth proportional to 73,019.85, 109,517.36 and 20,417.10 is: 30,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,019.85 : 109,517.36 = 20,417.10 : x
  2. Step 2: Convert to fraction form
    73,019.85/109,517.36 = 20,417.10/x
  3. Step 3: Cross multiply
    73,019.85x = 109,517.36 × 20,417.10
  4. Step 4: Simplify right side
    73,019.85x = 2,236,026,788.77
  5. Step 5: Solve for x
    x = 2,236,026,788.77/73,019.85
  6. Step 6: Final answer
    x = 30,622.18

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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.