Home / 89,210.30-123,111.90-48,921.64

Finding the Fourth Proportional to 89,210.30, 123,111.90 and 48,921.64

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Solution

The fourth proportional to 89,210.30, 123,111.90 and 48,921.64 is: 67,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,210.30 : 123,111.90 = 48,921.64 : x
  2. Step 2: Convert to fraction form
    89,210.30/123,111.90 = 48,921.64/x
  3. Step 3: Cross multiply
    89,210.30x = 123,111.90 × 48,921.64
  4. Step 4: Simplify right side
    89,210.30x = 6,022,835,743.74
  5. Step 5: Solve for x
    x = 6,022,835,743.74/89,210.30
  6. Step 6: Final answer
    x = 67,512.79

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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.