Home / 85,556.45-128,352.99-25,589.63

Finding the Fourth Proportional to 85,556.45, 128,352.99 and 25,589.63

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Solution

The fourth proportional to 85,556.45, 128,352.99 and 25,589.63 is: 38,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.45 : 128,352.99 = 25,589.63 : x
  2. Step 2: Convert to fraction form
    85,556.45/128,352.99 = 25,589.63/x
  3. Step 3: Cross multiply
    85,556.45x = 128,352.99 × 25,589.63
  4. Step 4: Simplify right side
    85,556.45x = 3,284,505,940.34
  5. Step 5: Solve for x
    x = 3,284,505,940.34/85,556.45
  6. Step 6: Final answer
    x = 38,389.93

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1.5x scale

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.