Home / 52,657.52-78,986.39-15,220.61

Finding the Fourth Proportional to 52,657.52, 78,986.39 and 15,220.61

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Solution

The fourth proportional to 52,657.52, 78,986.39 and 15,220.61 is: 22,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,657.52 : 78,986.39 = 15,220.61 : x
  2. Step 2: Convert to fraction form
    52,657.52/78,986.39 = 15,220.61/x
  3. Step 3: Cross multiply
    52,657.52x = 78,986.39 × 15,220.61
  4. Step 4: Simplify right side
    52,657.52x = 1,202,220,961.39
  5. Step 5: Solve for x
    x = 1,202,220,961.39/52,657.52
  6. Step 6: Final answer
    x = 22,830.95

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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.