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Finding the Fourth Proportional to 89,480.95, 123,485.89 and 49,195.49

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Solution

The fourth proportional to 89,480.95, 123,485.89 and 49,195.49 is: 67,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,480.95 : 123,485.89 = 49,195.49 : x
  2. Step 2: Convert to fraction form
    89,480.95/123,485.89 = 49,195.49/x
  3. Step 3: Cross multiply
    89,480.95x = 123,485.89 × 49,195.49
  4. Step 4: Simplify right side
    89,480.95x = 6,074,949,052.36
  5. Step 5: Solve for x
    x = 6,074,949,052.36/89,480.95
  6. Step 6: Final answer
    x = 67,890.98

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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.