Home / 47,772.85-71,660.90-12,712.54

Finding the Fourth Proportional to 47,772.85, 71,660.90 and 12,712.54

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Solution

The fourth proportional to 47,772.85, 71,660.90 and 12,712.54 is: 19,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,772.85 : 71,660.90 = 12,712.54 : x
  2. Step 2: Convert to fraction form
    47,772.85/71,660.90 = 12,712.54/x
  3. Step 3: Cross multiply
    47,772.85x = 71,660.90 × 12,712.54
  4. Step 4: Simplify right side
    47,772.85x = 910,992,205.06
  5. Step 5: Solve for x
    x = 910,992,205.06/47,772.85
  6. Step 6: Final answer
    x = 19,069.24

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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.