Home / 53,709.99-80,567.01-20,423.85

Finding the Fourth Proportional to 53,709.99, 80,567.01 and 20,423.85

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Solution

The fourth proportional to 53,709.99, 80,567.01 and 20,423.85 is: 30,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,709.99 : 80,567.01 = 20,423.85 : x
  2. Step 2: Convert to fraction form
    53,709.99/80,567.01 = 20,423.85/x
  3. Step 3: Cross multiply
    53,709.99x = 80,567.01 × 20,423.85
  4. Step 4: Simplify right side
    53,709.99x = 1,645,488,527.19
  5. Step 5: Solve for x
    x = 1,645,488,527.19/53,709.99
  6. Step 6: Final answer
    x = 30,636.55

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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.