Home / 53,454.12-80,119.22-20,152.86

Finding the Fourth Proportional to 53,454.12, 80,119.22 and 20,152.86

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Solution

The fourth proportional to 53,454.12, 80,119.22 and 20,152.86 is: 30,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,454.12 : 80,119.22 = 20,152.86 : x
  2. Step 2: Convert to fraction form
    53,454.12/80,119.22 = 20,152.86/x
  3. Step 3: Cross multiply
    53,454.12x = 80,119.22 × 20,152.86
  4. Step 4: Simplify right side
    53,454.12x = 1,614,631,423.97
  5. Step 5: Solve for x
    x = 1,614,631,423.97/53,454.12
  6. Step 6: Final answer
    x = 30,205.93

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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.