Home / 89,495.21-123,503.86-49,211.56

Finding the Fourth Proportional to 89,495.21, 123,503.86 and 49,211.56

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Solution

The fourth proportional to 89,495.21, 123,503.86 and 49,211.56 is: 67,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,495.21 : 123,503.86 = 49,211.56 : x
  2. Step 2: Convert to fraction form
    89,495.21/123,503.86 = 49,211.56/x
  3. Step 3: Cross multiply
    89,495.21x = 123,503.86 × 49,211.56
  4. Step 4: Simplify right side
    89,495.21x = 6,077,817,832.52
  5. Step 5: Solve for x
    x = 6,077,817,832.52/89,495.21
  6. Step 6: Final answer
    x = 67,912.21

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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.