Home / 53,861.77-80,812.10-18,806.59

Finding the Fourth Proportional to 53,861.77, 80,812.10 and 18,806.59

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Solution

The fourth proportional to 53,861.77, 80,812.10 and 18,806.59 is: 28,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,861.77 : 80,812.10 = 18,806.59 : x
  2. Step 2: Convert to fraction form
    53,861.77/80,812.10 = 18,806.59/x
  3. Step 3: Cross multiply
    53,861.77x = 80,812.10 × 18,806.59
  4. Step 4: Simplify right side
    53,861.77x = 1,519,800,031.74
  5. Step 5: Solve for x
    x = 1,519,800,031.74/53,861.77
  6. Step 6: Final answer
    x = 28,216.67

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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.