Home / 57,201.39-85,788.42-19,762.80

Finding the Fourth Proportional to 57,201.39, 85,788.42 and 19,762.80

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Solution

The fourth proportional to 57,201.39, 85,788.42 and 19,762.80 is: 29,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.39 : 85,788.42 = 19,762.80 : x
  2. Step 2: Convert to fraction form
    57,201.39/85,788.42 = 19,762.80/x
  3. Step 3: Cross multiply
    57,201.39x = 85,788.42 × 19,762.80
  4. Step 4: Simplify right side
    57,201.39x = 1,695,419,386.78
  5. Step 5: Solve for x
    x = 1,695,419,386.78/57,201.39
  6. Step 6: Final answer
    x = 29,639.48

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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.