Home / 57,459.49-86,189.23-18,019.78

Finding the Fourth Proportional to 57,459.49, 86,189.23 and 18,019.78

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Solution

The fourth proportional to 57,459.49, 86,189.23 and 18,019.78 is: 27,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,459.49 : 86,189.23 = 18,019.78 : x
  2. Step 2: Convert to fraction form
    57,459.49/86,189.23 = 18,019.78/x
  3. Step 3: Cross multiply
    57,459.49x = 86,189.23 × 18,019.78
  4. Step 4: Simplify right side
    57,459.49x = 1,553,110,962.97
  5. Step 5: Solve for x
    x = 1,553,110,962.97/57,459.49
  6. Step 6: Final answer
    x = 27,029.67

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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.