Home / 79,404.20-109,556.40-45,405.67

Finding the Fourth Proportional to 79,404.20, 109,556.40 and 45,405.67

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Solution

The fourth proportional to 79,404.20, 109,556.40 and 45,405.67 is: 62,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,404.20 : 109,556.40 = 45,405.67 : x
  2. Step 2: Convert to fraction form
    79,404.20/109,556.40 = 45,405.67/x
  3. Step 3: Cross multiply
    79,404.20x = 109,556.40 × 45,405.67
  4. Step 4: Simplify right side
    79,404.20x = 4,974,481,899.31
  5. Step 5: Solve for x
    x = 4,974,481,899.31/79,404.20
  6. Step 6: Final answer
    x = 62,647.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.