Home / 89,451.75-123,443.66-49,707.75

Finding the Fourth Proportional to 89,451.75, 123,443.66 and 49,707.75

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Solution

The fourth proportional to 89,451.75, 123,443.66 and 49,707.75 is: 68,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,451.75 : 123,443.66 = 49,707.75 : x
  2. Step 2: Convert to fraction form
    89,451.75/123,443.66 = 49,707.75/x
  3. Step 3: Cross multiply
    89,451.75x = 123,443.66 × 49,707.75
  4. Step 4: Simplify right side
    89,451.75x = 6,136,106,341.83
  5. Step 5: Solve for x
    x = 6,136,106,341.83/89,451.75
  6. Step 6: Final answer
    x = 68,596.83

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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.