Home / 57,039.08-85,564.48-21,530.31

Finding the Fourth Proportional to 57,039.08, 85,564.48 and 21,530.31

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Solution

The fourth proportional to 57,039.08, 85,564.48 and 21,530.31 is: 32,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,039.08 : 85,564.48 = 21,530.31 : x
  2. Step 2: Convert to fraction form
    57,039.08/85,564.48 = 21,530.31/x
  3. Step 3: Cross multiply
    57,039.08x = 85,564.48 × 21,530.31
  4. Step 4: Simplify right side
    57,039.08x = 1,842,229,351.57
  5. Step 5: Solve for x
    x = 1,842,229,351.57/57,039.08
  6. Step 6: Final answer
    x = 32,297.67

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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.