Home / 57,715.39-86,580.41-18,258.25

Finding the Fourth Proportional to 57,715.39, 86,580.41 and 18,258.25

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Solution

The fourth proportional to 57,715.39, 86,580.41 and 18,258.25 is: 27,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.39 : 86,580.41 = 18,258.25 : x
  2. Step 2: Convert to fraction form
    57,715.39/86,580.41 = 18,258.25/x
  3. Step 3: Cross multiply
    57,715.39x = 86,580.41 × 18,258.25
  4. Step 4: Simplify right side
    57,715.39x = 1,580,806,770.88
  5. Step 5: Solve for x
    x = 1,580,806,770.88/57,715.39
  6. Step 6: Final answer
    x = 27,389.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.