Home / 7,175.20-9,901.68-4,031.32

Finding the Fourth Proportional to 7,175.20, 9,901.68 and 4,031.32

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Solution

The fourth proportional to 7,175.20, 9,901.68 and 4,031.32 is: 5,563.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.20 : 9,901.68 = 4,031.32 : x
  2. Step 2: Convert to fraction form
    7,175.20/9,901.68 = 4,031.32/x
  3. Step 3: Cross multiply
    7,175.20x = 9,901.68 × 4,031.32
  4. Step 4: Simplify right side
    7,175.20x = 39,916,840.62
  5. Step 5: Solve for x
    x = 39,916,840.62/7,175.20
  6. Step 6: Final answer
    x = 5,563.17

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