Home / 51,376.78-77,064.48-13,940.35

Finding the Fourth Proportional to 51,376.78, 77,064.48 and 13,940.35

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Solution

The fourth proportional to 51,376.78, 77,064.48 and 13,940.35 is: 20,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,376.78 : 77,064.48 = 13,940.35 : x
  2. Step 2: Convert to fraction form
    51,376.78/77,064.48 = 13,940.35/x
  3. Step 3: Cross multiply
    51,376.78x = 77,064.48 × 13,940.35
  4. Step 4: Simplify right side
    51,376.78x = 1,074,305,438.45
  5. Step 5: Solve for x
    x = 1,074,305,438.45/51,376.78
  6. Step 6: Final answer
    x = 20,910.33

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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.