Home / 51,855.35-77,765.72-20,257.22

Finding the Fourth Proportional to 51,855.35, 77,765.72 and 20,257.22

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Solution

The fourth proportional to 51,855.35, 77,765.72 and 20,257.22 is: 30,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,855.35 : 77,765.72 = 20,257.22 : x
  2. Step 2: Convert to fraction form
    51,855.35/77,765.72 = 20,257.22/x
  3. Step 3: Cross multiply
    51,855.35x = 77,765.72 × 20,257.22
  4. Step 4: Simplify right side
    51,855.35x = 1,575,316,808.38
  5. Step 5: Solve for x
    x = 1,575,316,808.38/51,855.35
  6. Step 6: Final answer
    x = 30,379.06

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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.