Home / 52,112.61-78,167.84-12,669.93

Finding the Fourth Proportional to 52,112.61, 78,167.84 and 12,669.93

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Solution

The fourth proportional to 52,112.61, 78,167.84 and 12,669.93 is: 19,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,112.61 : 78,167.84 = 12,669.93 : x
  2. Step 2: Convert to fraction form
    52,112.61/78,167.84 = 12,669.93/x
  3. Step 3: Cross multiply
    52,112.61x = 78,167.84 × 12,669.93
  4. Step 4: Simplify right side
    52,112.61x = 990,380,997.70
  5. Step 5: Solve for x
    x = 990,380,997.70/52,112.61
  6. Step 6: Final answer
    x = 19,004.63

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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.