Home / 89,612.89-123,665.79-49,326.48

Finding the Fourth Proportional to 89,612.89, 123,665.79 and 49,326.48

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Solution

The fourth proportional to 89,612.89, 123,665.79 and 49,326.48 is: 68,070.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,612.89 : 123,665.79 = 49,326.48 : x
  2. Step 2: Convert to fraction form
    89,612.89/123,665.79 = 49,326.48/x
  3. Step 3: Cross multiply
    89,612.89x = 123,665.79 × 49,326.48
  4. Step 4: Simplify right side
    89,612.89x = 6,099,997,728.11
  5. Step 5: Solve for x
    x = 6,099,997,728.11/89,612.89
  6. Step 6: Final answer
    x = 68,070.54

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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.