Home / 89,405.84-123,382.24-49,122.21

Finding the Fourth Proportional to 89,405.84, 123,382.24 and 49,122.21

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Solution

The fourth proportional to 89,405.84, 123,382.24 and 49,122.21 is: 67,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,405.84 : 123,382.24 = 49,122.21 : x
  2. Step 2: Convert to fraction form
    89,405.84/123,382.24 = 49,122.21/x
  3. Step 3: Cross multiply
    89,405.84x = 123,382.24 × 49,122.21
  4. Step 4: Simplify right side
    89,405.84x = 6,060,808,643.43
  5. Step 5: Solve for x
    x = 6,060,808,643.43/89,405.84
  6. Step 6: Final answer
    x = 67,789.85

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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.