Home / 53,719.85-80,614.77-20,440.19

Finding the Fourth Proportional to 53,719.85, 80,614.77 and 20,440.19

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Solution

The fourth proportional to 53,719.85, 80,614.77 and 20,440.19 is: 30,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,719.85 : 80,614.77 = 20,440.19 : x
  2. Step 2: Convert to fraction form
    53,719.85/80,614.77 = 20,440.19/x
  3. Step 3: Cross multiply
    53,719.85x = 80,614.77 × 20,440.19
  4. Step 4: Simplify right side
    53,719.85x = 1,647,781,340.49
  5. Step 5: Solve for x
    x = 1,647,781,340.49/53,719.85
  6. Step 6: Final answer
    x = 30,673.60

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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.