Home / 89,631.36-123,690.36-49,344.60

Finding the Fourth Proportional to 89,631.36, 123,690.36 and 49,344.60

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Solution

The fourth proportional to 89,631.36, 123,690.36 and 49,344.60 is: 68,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,631.36 : 123,690.36 = 49,344.60 : x
  2. Step 2: Convert to fraction form
    89,631.36/123,690.36 = 49,344.60/x
  3. Step 3: Cross multiply
    89,631.36x = 123,690.36 × 49,344.60
  4. Step 4: Simplify right side
    89,631.36x = 6,103,451,338.06
  5. Step 5: Solve for x
    x = 6,103,451,338.06/89,631.36
  6. Step 6: Final answer
    x = 68,095.04

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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.