Home / 54,162.16-81,234.84-20,897.80

Finding the Fourth Proportional to 54,162.16, 81,234.84 and 20,897.80

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Solution

The fourth proportional to 54,162.16, 81,234.84 and 20,897.80 is: 31,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,162.16 : 81,234.84 = 20,897.80 : x
  2. Step 2: Convert to fraction form
    54,162.16/81,234.84 = 20,897.80/x
  3. Step 3: Cross multiply
    54,162.16x = 81,234.84 × 20,897.80
  4. Step 4: Simplify right side
    54,162.16x = 1,697,629,439.35
  5. Step 5: Solve for x
    x = 1,697,629,439.35/54,162.16
  6. Step 6: Final answer
    x = 31,343.46

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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.