Home / 55,872.21-83,808.36-20,803.71

Finding the Fourth Proportional to 55,872.21, 83,808.36 and 20,803.71

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Solution

The fourth proportional to 55,872.21, 83,808.36 and 20,803.71 is: 31,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.21 : 83,808.36 = 20,803.71 : x
  2. Step 2: Convert to fraction form
    55,872.21/83,808.36 = 20,803.71/x
  3. Step 3: Cross multiply
    55,872.21x = 83,808.36 × 20,803.71
  4. Step 4: Simplify right side
    55,872.21x = 1,743,524,817.02
  5. Step 5: Solve for x
    x = 1,743,524,817.02/55,872.21
  6. Step 6: Final answer
    x = 31,205.58

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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.