Home / 75,631.72-104,370.30-47,353

Finding the Fourth Proportional to 75,631.72, 104,370.30 and 47,353

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Solution

The fourth proportional to 75,631.72, 104,370.30 and 47,353 is: 65,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,631.72 : 104,370.30 = 47,353 : x
  2. Step 2: Convert to fraction form
    75,631.72/104,370.30 = 47,353/x
  3. Step 3: Cross multiply
    75,631.72x = 104,370.30 × 47,353
  4. Step 4: Simplify right side
    75,631.72x = 4,942,246,815.90
  5. Step 5: Solve for x
    x = 4,942,246,815.90/75,631.72
  6. Step 6: Final answer
    x = 65,346.22

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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.