Home / 47,772.06-71,657.99-12,711.72

Finding the Fourth Proportional to 47,772.06, 71,657.99 and 12,711.72

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Solution

The fourth proportional to 47,772.06, 71,657.99 and 12,711.72 is: 19,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,772.06 : 71,657.99 = 12,711.72 : x
  2. Step 2: Convert to fraction form
    47,772.06/71,657.99 = 12,711.72/x
  3. Step 3: Cross multiply
    47,772.06x = 71,657.99 × 12,711.72
  4. Step 4: Simplify right side
    47,772.06x = 910,896,304.64
  5. Step 5: Solve for x
    x = 910,896,304.64/47,772.06
  6. Step 6: Final answer
    x = 19,067.55

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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.