Home / 47,772.78-71,660.81-21,477.61

Finding the Fourth Proportional to 47,772.78, 71,660.81 and 21,477.61

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Solution

The fourth proportional to 47,772.78, 71,660.81 and 21,477.61 is: 32,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,772.78 : 71,660.81 = 21,477.61 : x
  2. Step 2: Convert to fraction form
    47,772.78/71,660.81 = 21,477.61/x
  3. Step 3: Cross multiply
    47,772.78x = 71,660.81 × 21,477.61
  4. Step 4: Simplify right side
    47,772.78x = 1,539,102,822.08
  5. Step 5: Solve for x
    x = 1,539,102,822.08/47,772.78
  6. Step 6: Final answer
    x = 32,217.15

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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.