Home / 77,176.08-115,685.22-52,218.76

Finding the Fourth Proportional to 77,176.08, 115,685.22 and 52,218.76

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Solution

The fourth proportional to 77,176.08, 115,685.22 and 52,218.76 is: 78,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,176.08 : 115,685.22 = 52,218.76 : x
  2. Step 2: Convert to fraction form
    77,176.08/115,685.22 = 52,218.76/x
  3. Step 3: Cross multiply
    77,176.08x = 115,685.22 × 52,218.76
  4. Step 4: Simplify right side
    77,176.08x = 6,040,938,738.73
  5. Step 5: Solve for x
    x = 6,040,938,738.73/77,176.08
  6. Step 6: Final answer
    x = 78,274.75

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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.