Home / 89,572.89-123,613.53-51,339.69

Finding the Fourth Proportional to 89,572.89, 123,613.53 and 51,339.69

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Solution

The fourth proportional to 89,572.89, 123,613.53 and 51,339.69 is: 70,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,572.89 : 123,613.53 = 51,339.69 : x
  2. Step 2: Convert to fraction form
    89,572.89/123,613.53 = 51,339.69/x
  3. Step 3: Cross multiply
    89,572.89x = 123,613.53 × 51,339.69
  4. Step 4: Simplify right side
    89,572.89x = 6,346,280,310.01
  5. Step 5: Solve for x
    x = 6,346,280,310.01/89,572.89
  6. Step 6: Final answer
    x = 70,850.46

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Double scale
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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.