Home / 82,807.72-114,408.26-57,769

Finding the Fourth Proportional to 82,807.72, 114,408.26 and 57,769

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Solution

The fourth proportional to 82,807.72, 114,408.26 and 57,769 is: 79,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,807.72 : 114,408.26 = 57,769 : x
  2. Step 2: Convert to fraction form
    82,807.72/114,408.26 = 57,769/x
  3. Step 3: Cross multiply
    82,807.72x = 114,408.26 × 57,769
  4. Step 4: Simplify right side
    82,807.72x = 6,609,250,771.94
  5. Step 5: Solve for x
    x = 6,609,250,771.94/82,807.72
  6. Step 6: Final answer
    x = 79,814.43

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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.