Home / 53,406.87-80,115.80-20,154.93

Finding the Fourth Proportional to 53,406.87, 80,115.80 and 20,154.93

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Solution

The fourth proportional to 53,406.87, 80,115.80 and 20,154.93 is: 30,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,406.87 : 80,115.80 = 20,154.93 : x
  2. Step 2: Convert to fraction form
    53,406.87/80,115.80 = 20,154.93/x
  3. Step 3: Cross multiply
    53,406.87x = 80,115.80 × 20,154.93
  4. Step 4: Simplify right side
    53,406.87x = 1,614,728,240.12
  5. Step 5: Solve for x
    x = 1,614,728,240.12/53,406.87
  6. Step 6: Final answer
    x = 30,234.47

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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.