Home / 55,855.68-83,733.70-20,771.34

Finding the Fourth Proportional to 55,855.68, 83,733.70 and 20,771.34

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Solution

The fourth proportional to 55,855.68, 83,733.70 and 20,771.34 is: 31,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.68 : 83,733.70 = 20,771.34 : x
  2. Step 2: Convert to fraction form
    55,855.68/83,733.70 = 20,771.34/x
  3. Step 3: Cross multiply
    55,855.68x = 83,733.70 × 20,771.34
  4. Step 4: Simplify right side
    55,855.68x = 1,739,261,152.16
  5. Step 5: Solve for x
    x = 1,739,261,152.16/55,855.68
  6. Step 6: Final answer
    x = 31,138.48

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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.