Home / 57,556.08-86,334.30-20,115.99

Finding the Fourth Proportional to 57,556.08, 86,334.30 and 20,115.99

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Solution

The fourth proportional to 57,556.08, 86,334.30 and 20,115.99 is: 30,174.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,556.08 : 86,334.30 = 20,115.99 : x
  2. Step 2: Convert to fraction form
    57,556.08/86,334.30 = 20,115.99/x
  3. Step 3: Cross multiply
    57,556.08x = 86,334.30 × 20,115.99
  4. Step 4: Simplify right side
    57,556.08x = 1,736,699,915.46
  5. Step 5: Solve for x
    x = 1,736,699,915.46/57,556.08
  6. Step 6: Final answer
    x = 30,174.05

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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.