Home / 89,501.32-123,511.62-49,217.56

Finding the Fourth Proportional to 89,501.32, 123,511.62 and 49,217.56

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Solution

The fourth proportional to 89,501.32, 123,511.62 and 49,217.56 is: 67,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,501.32 : 123,511.62 = 49,217.56 : x
  2. Step 2: Convert to fraction form
    89,501.32/123,511.62 = 49,217.56/x
  3. Step 3: Cross multiply
    89,501.32x = 123,511.62 × 49,217.56
  4. Step 4: Simplify right side
    89,501.32x = 6,078,940,568.05
  5. Step 5: Solve for x
    x = 6,078,940,568.05/89,501.32
  6. Step 6: Final answer
    x = 67,920.12

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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.