Home / 57,122.52-78,819.71-35,886.75

Finding the Fourth Proportional to 57,122.52, 78,819.71 and 35,886.75

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Solution

The fourth proportional to 57,122.52, 78,819.71 and 35,886.75 is: 49,517.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,122.52 : 78,819.71 = 35,886.75 : x
  2. Step 2: Convert to fraction form
    57,122.52/78,819.71 = 35,886.75/x
  3. Step 3: Cross multiply
    57,122.52x = 78,819.71 × 35,886.75
  4. Step 4: Simplify right side
    57,122.52x = 2,828,583,048.41
  5. Step 5: Solve for x
    x = 2,828,583,048.41/57,122.52
  6. Step 6: Final answer
    x = 49,517.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.