Home / 78,049.20-117,100.08-24,749.92

Finding the Fourth Proportional to 78,049.20, 117,100.08 and 24,749.92

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Solution

The fourth proportional to 78,049.20, 117,100.08 and 24,749.92 is: 37,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,049.20 : 117,100.08 = 24,749.92 : x
  2. Step 2: Convert to fraction form
    78,049.20/117,100.08 = 24,749.92/x
  3. Step 3: Cross multiply
    78,049.20x = 117,100.08 × 24,749.92
  4. Step 4: Simplify right side
    78,049.20x = 2,898,217,611.99
  5. Step 5: Solve for x
    x = 2,898,217,611.99/78,049.20
  6. Step 6: Final answer
    x = 37,133.21

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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.