Home / 89,428.42-123,408.66-50,662.63

Finding the Fourth Proportional to 89,428.42, 123,408.66 and 50,662.63

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Solution

The fourth proportional to 89,428.42, 123,408.66 and 50,662.63 is: 69,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,428.42 : 123,408.66 = 50,662.63 : x
  2. Step 2: Convert to fraction form
    89,428.42/123,408.66 = 50,662.63/x
  3. Step 3: Cross multiply
    89,428.42x = 123,408.66 × 50,662.63
  4. Step 4: Simplify right side
    89,428.42x = 6,252,207,280.38
  5. Step 5: Solve for x
    x = 6,252,207,280.38/89,428.42
  6. Step 6: Final answer
    x = 69,912.98

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1.5x scale

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.