Home / 89,330.69-123,334.04-55,375.29

Finding the Fourth Proportional to 89,330.69, 123,334.04 and 55,375.29

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Solution

The fourth proportional to 89,330.69, 123,334.04 and 55,375.29 is: 76,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,330.69 : 123,334.04 = 55,375.29 : x
  2. Step 2: Convert to fraction form
    89,330.69/123,334.04 = 55,375.29/x
  3. Step 3: Cross multiply
    89,330.69x = 123,334.04 × 55,375.29
  4. Step 4: Simplify right side
    89,330.69x = 6,829,658,231.87
  5. Step 5: Solve for x
    x = 6,829,658,231.87/89,330.69
  6. Step 6: Final answer
    x = 76,453.66

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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.