Home / 55,855.37-83,756.72-20,291.61

Finding the Fourth Proportional to 55,855.37, 83,756.72 and 20,291.61

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Solution

The fourth proportional to 55,855.37, 83,756.72 and 20,291.61 is: 30,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.37 : 83,756.72 = 20,291.61 : x
  2. Step 2: Convert to fraction form
    55,855.37/83,756.72 = 20,291.61/x
  3. Step 3: Cross multiply
    55,855.37x = 83,756.72 × 20,291.61
  4. Step 4: Simplify right side
    55,855.37x = 1,699,558,595.66
  5. Step 5: Solve for x
    x = 1,699,558,595.66/55,855.37
  6. Step 6: Final answer
    x = 30,427.85

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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.