Home / 53,515.16-80,288.94-20,245.42

Finding the Fourth Proportional to 53,515.16, 80,288.94 and 20,245.42

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Solution

The fourth proportional to 53,515.16, 80,288.94 and 20,245.42 is: 30,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,515.16 : 80,288.94 = 20,245.42 : x
  2. Step 2: Convert to fraction form
    53,515.16/80,288.94 = 20,245.42/x
  3. Step 3: Cross multiply
    53,515.16x = 80,288.94 × 20,245.42
  4. Step 4: Simplify right side
    53,515.16x = 1,625,483,487.94
  5. Step 5: Solve for x
    x = 1,625,483,487.94/53,515.16
  6. Step 6: Final answer
    x = 30,374.26

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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.