Home / 89,207.86-123,107.01-48,921.90

Finding the Fourth Proportional to 89,207.86, 123,107.01 and 48,921.90

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Solution

The fourth proportional to 89,207.86, 123,107.01 and 48,921.90 is: 67,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,207.86 : 123,107.01 = 48,921.90 : x
  2. Step 2: Convert to fraction form
    89,207.86/123,107.01 = 48,921.90/x
  3. Step 3: Cross multiply
    89,207.86x = 123,107.01 × 48,921.90
  4. Step 4: Simplify right side
    89,207.86x = 6,022,628,832.52
  5. Step 5: Solve for x
    x = 6,022,628,832.52/89,207.86
  6. Step 6: Final answer
    x = 67,512.32

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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.