Home / 47,176.52-70,765.49-12,115.40

Finding the Fourth Proportional to 47,176.52, 70,765.49 and 12,115.40

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Solution

The fourth proportional to 47,176.52, 70,765.49 and 12,115.40 is: 18,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,176.52 : 70,765.49 = 12,115.40 : x
  2. Step 2: Convert to fraction form
    47,176.52/70,765.49 = 12,115.40/x
  3. Step 3: Cross multiply
    47,176.52x = 70,765.49 × 12,115.40
  4. Step 4: Simplify right side
    47,176.52x = 857,352,217.55
  5. Step 5: Solve for x
    x = 857,352,217.55/47,176.52
  6. Step 6: Final answer
    x = 18,173.28

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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.