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Finding the Fourth Proportional to 79,857.45, 110,238.71 and 51,576.93

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Solution

The fourth proportional to 79,857.45, 110,238.71 and 51,576.93 is: 71,199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,857.45 : 110,238.71 = 51,576.93 : x
  2. Step 2: Convert to fraction form
    79,857.45/110,238.71 = 51,576.93/x
  3. Step 3: Cross multiply
    79,857.45x = 110,238.71 × 51,576.93
  4. Step 4: Simplify right side
    79,857.45x = 5,685,773,971.08
  5. Step 5: Solve for x
    x = 5,685,773,971.08/79,857.45
  6. Step 6: Final answer
    x = 71,199.04

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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.