Home / 70,747.20-106,013.88-47,331.72

Finding the Fourth Proportional to 70,747.20, 106,013.88 and 47,331.72

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Solution

The fourth proportional to 70,747.20, 106,013.88 and 47,331.72 is: 70,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,747.20 : 106,013.88 = 47,331.72 : x
  2. Step 2: Convert to fraction form
    70,747.20/106,013.88 = 47,331.72/x
  3. Step 3: Cross multiply
    70,747.20x = 106,013.88 × 47,331.72
  4. Step 4: Simplify right side
    70,747.20x = 5,017,819,284.27
  5. Step 5: Solve for x
    x = 5,017,819,284.27/70,747.20
  6. Step 6: Final answer
    x = 70,926.05

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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.