Home / 47,193.18-70,789.77-12,132.87

Finding the Fourth Proportional to 47,193.18, 70,789.77 and 12,132.87

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Solution

The fourth proportional to 47,193.18, 70,789.77 and 12,132.87 is: 18,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,193.18 : 70,789.77 = 12,132.87 : x
  2. Step 2: Convert to fraction form
    47,193.18/70,789.77 = 12,132.87/x
  3. Step 3: Cross multiply
    47,193.18x = 70,789.77 × 12,132.87
  4. Step 4: Simplify right side
    47,193.18x = 858,883,076.74
  5. Step 5: Solve for x
    x = 858,883,076.74/47,193.18
  6. Step 6: Final answer
    x = 18,199.31

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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.