Home / 57,940.20-86,780.70-47,572.20

Finding the Fourth Proportional to 57,940.20, 86,780.70 and 47,572.20

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Solution

The fourth proportional to 57,940.20, 86,780.70 and 47,572.20 is: 71,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,940.20 : 86,780.70 = 47,572.20 : x
  2. Step 2: Convert to fraction form
    57,940.20/86,780.70 = 47,572.20/x
  3. Step 3: Cross multiply
    57,940.20x = 86,780.70 × 47,572.20
  4. Step 4: Simplify right side
    57,940.20x = 4,128,348,816.54
  5. Step 5: Solve for x
    x = 4,128,348,816.54/57,940.20
  6. Step 6: Final answer
    x = 71,251.89

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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.