Home / 89,453.25-123,448.31-49,170.12

Finding the Fourth Proportional to 89,453.25, 123,448.31 and 49,170.12

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Solution

The fourth proportional to 89,453.25, 123,448.31 and 49,170.12 is: 67,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,453.25 : 123,448.31 = 49,170.12 : x
  2. Step 2: Convert to fraction form
    89,453.25/123,448.31 = 49,170.12/x
  3. Step 3: Cross multiply
    89,453.25x = 123,448.31 × 49,170.12
  4. Step 4: Simplify right side
    89,453.25x = 6,069,967,970.65
  5. Step 5: Solve for x
    x = 6,069,967,970.65/89,453.25
  6. Step 6: Final answer
    x = 67,856.32

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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.