Home / 53,515.54-80,289.50-20,245.80

Finding the Fourth Proportional to 53,515.54, 80,289.50 and 20,245.80

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Solution

The fourth proportional to 53,515.54, 80,289.50 and 20,245.80 is: 30,374.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,515.54 : 80,289.50 = 20,245.80 : x
  2. Step 2: Convert to fraction form
    53,515.54/80,289.50 = 20,245.80/x
  3. Step 3: Cross multiply
    53,515.54x = 80,289.50 × 20,245.80
  4. Step 4: Simplify right side
    53,515.54x = 1,625,525,209.71
  5. Step 5: Solve for x
    x = 1,625,525,209.71/53,515.54
  6. Step 6: Final answer
    x = 30,374.83

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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.