Home / 89,728.46-123,830.80-49,442.21

Finding the Fourth Proportional to 89,728.46, 123,830.80 and 49,442.21

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Solution

The fourth proportional to 89,728.46, 123,830.80 and 49,442.21 is: 68,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,728.46 : 123,830.80 = 49,442.21 : x
  2. Step 2: Convert to fraction form
    89,728.46/123,830.80 = 49,442.21/x
  3. Step 3: Cross multiply
    89,728.46x = 123,830.80 × 49,442.21
  4. Step 4: Simplify right side
    89,728.46x = 6,122,468,975.28
  5. Step 5: Solve for x
    x = 6,122,468,975.28/89,728.46
  6. Step 6: Final answer
    x = 68,233.30

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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.