Home / 89,728.54-123,819.80-49,440.05

Finding the Fourth Proportional to 89,728.54, 123,819.80 and 49,440.05

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Solution

The fourth proportional to 89,728.54, 123,819.80 and 49,440.05 is: 68,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,728.54 : 123,819.80 = 49,440.05 : x
  2. Step 2: Convert to fraction form
    89,728.54/123,819.80 = 49,440.05/x
  3. Step 3: Cross multiply
    89,728.54x = 123,819.80 × 49,440.05
  4. Step 4: Simplify right side
    89,728.54x = 6,121,656,607.49
  5. Step 5: Solve for x
    x = 6,121,656,607.49/89,728.54
  6. Step 6: Final answer
    x = 68,224.19

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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.