Home / 51,778.20-77,656.35-16,698.72

Finding the Fourth Proportional to 51,778.20, 77,656.35 and 16,698.72

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Solution

The fourth proportional to 51,778.20, 77,656.35 and 16,698.72 is: 25,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,778.20 : 77,656.35 = 16,698.72 : x
  2. Step 2: Convert to fraction form
    51,778.20/77,656.35 = 16,698.72/x
  3. Step 3: Cross multiply
    51,778.20x = 77,656.35 × 16,698.72
  4. Step 4: Simplify right side
    51,778.20x = 1,296,761,644.87
  5. Step 5: Solve for x
    x = 1,296,761,644.87/51,778.20
  6. Step 6: Final answer
    x = 25,044.55

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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.