Home / 51,138.72-70,548.72-29,908.62

Finding the Fourth Proportional to 51,138.72, 70,548.72 and 29,908.62

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Solution

The fourth proportional to 51,138.72, 70,548.72 and 29,908.62 is: 41,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,138.72 : 70,548.72 = 29,908.62 : x
  2. Step 2: Convert to fraction form
    51,138.72/70,548.72 = 29,908.62/x
  3. Step 3: Cross multiply
    51,138.72x = 70,548.72 × 29,908.62
  4. Step 4: Simplify right side
    51,138.72x = 2,110,014,857.97
  5. Step 5: Solve for x
    x = 2,110,014,857.97/51,138.72
  6. Step 6: Final answer
    x = 41,260.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.