Home / 89,379.50-123,352.27-51,131.45

Finding the Fourth Proportional to 89,379.50, 123,352.27 and 51,131.45

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Solution

The fourth proportional to 89,379.50, 123,352.27 and 51,131.45 is: 70,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,379.50 : 123,352.27 = 51,131.45 : x
  2. Step 2: Convert to fraction form
    89,379.50/123,352.27 = 51,131.45/x
  3. Step 3: Cross multiply
    89,379.50x = 123,352.27 × 51,131.45
  4. Step 4: Simplify right side
    89,379.50x = 6,307,180,606.44
  5. Step 5: Solve for x
    x = 6,307,180,606.44/89,379.50
  6. Step 6: Final answer
    x = 70,566.30

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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.