Home / 51,234.60-76,769.10-28,981.80

Finding the Fourth Proportional to 51,234.60, 76,769.10 and 28,981.80

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Solution

The fourth proportional to 51,234.60, 76,769.10 and 28,981.80 is: 43,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,234.60 : 76,769.10 = 28,981.80 : x
  2. Step 2: Convert to fraction form
    51,234.60/76,769.10 = 28,981.80/x
  3. Step 3: Cross multiply
    51,234.60x = 76,769.10 × 28,981.80
  4. Step 4: Simplify right side
    51,234.60x = 2,224,906,702.38
  5. Step 5: Solve for x
    x = 2,224,906,702.38/51,234.60
  6. Step 6: Final answer
    x = 43,425.86

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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.