Home / 51,103.20-76,658.40-28,927.20

Finding the Fourth Proportional to 51,103.20, 76,658.40 and 28,927.20

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Solution

The fourth proportional to 51,103.20, 76,658.40 and 28,927.20 is: 43,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,103.20 : 76,658.40 = 28,927.20 : x
  2. Step 2: Convert to fraction form
    51,103.20/76,658.40 = 28,927.20/x
  3. Step 3: Cross multiply
    51,103.20x = 76,658.40 × 28,927.20
  4. Step 4: Simplify right side
    51,103.20x = 2,217,512,868.48
  5. Step 5: Solve for x
    x = 2,217,512,868.48/51,103.20
  6. Step 6: Final answer
    x = 43,392.84

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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.