Home / 53,621.40-80,416.42-20,317.44

Finding the Fourth Proportional to 53,621.40, 80,416.42 and 20,317.44

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Solution

The fourth proportional to 53,621.40, 80,416.42 and 20,317.44 is: 30,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,621.40 : 80,416.42 = 20,317.44 : x
  2. Step 2: Convert to fraction form
    53,621.40/80,416.42 = 20,317.44/x
  3. Step 3: Cross multiply
    53,621.40x = 80,416.42 × 20,317.44
  4. Step 4: Simplify right side
    53,621.40x = 1,633,855,788.36
  5. Step 5: Solve for x
    x = 1,633,855,788.36/53,621.40
  6. Step 6: Final answer
    x = 30,470.22

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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.