Home / 57,717.72-86,579.64-18,271.80

Finding the Fourth Proportional to 57,717.72, 86,579.64 and 18,271.80

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Solution

The fourth proportional to 57,717.72, 86,579.64 and 18,271.80 is: 27,408.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.72 : 86,579.64 = 18,271.80 : x
  2. Step 2: Convert to fraction form
    57,717.72/86,579.64 = 18,271.80/x
  3. Step 3: Cross multiply
    57,717.72x = 86,579.64 × 18,271.80
  4. Step 4: Simplify right side
    57,717.72x = 1,581,965,866.15
  5. Step 5: Solve for x
    x = 1,581,965,866.15/57,717.72
  6. Step 6: Final answer
    x = 27,408.67

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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.