Home / 53,868.20-80,839.20-18,807.86

Finding the Fourth Proportional to 53,868.20, 80,839.20 and 18,807.86

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Solution

The fourth proportional to 53,868.20, 80,839.20 and 18,807.86 is: 28,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,868.20 : 80,839.20 = 18,807.86 : x
  2. Step 2: Convert to fraction form
    53,868.20/80,839.20 = 18,807.86/x
  3. Step 3: Cross multiply
    53,868.20x = 80,839.20 × 18,807.86
  4. Step 4: Simplify right side
    53,868.20x = 1,520,412,356.11
  5. Step 5: Solve for x
    x = 1,520,412,356.11/53,868.20
  6. Step 6: Final answer
    x = 28,224.67

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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.