Home / 80,466.36-120,697.48-38,376.20

Finding the Fourth Proportional to 80,466.36, 120,697.48 and 38,376.20

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Solution

The fourth proportional to 80,466.36, 120,697.48 and 38,376.20 is: 57,563.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,466.36 : 120,697.48 = 38,376.20 : x
  2. Step 2: Convert to fraction form
    80,466.36/120,697.48 = 38,376.20/x
  3. Step 3: Cross multiply
    80,466.36x = 120,697.48 × 38,376.20
  4. Step 4: Simplify right side
    80,466.36x = 4,631,910,631.98
  5. Step 5: Solve for x
    x = 4,631,910,631.98/80,466.36
  6. Step 6: Final answer
    x = 57,563.32

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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.