Home / 51,819.72-77,729.58-14,379.80

Finding the Fourth Proportional to 51,819.72, 77,729.58 and 14,379.80

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Solution

The fourth proportional to 51,819.72, 77,729.58 and 14,379.80 is: 21,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,819.72 : 77,729.58 = 14,379.80 : x
  2. Step 2: Convert to fraction form
    51,819.72/77,729.58 = 14,379.80/x
  3. Step 3: Cross multiply
    51,819.72x = 77,729.58 × 14,379.80
  4. Step 4: Simplify right side
    51,819.72x = 1,117,735,814.48
  5. Step 5: Solve for x
    x = 1,117,735,814.48/51,819.72
  6. Step 6: Final answer
    x = 21,569.70

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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.