Home / 57,365.20-86,057.12-19,947.45

Finding the Fourth Proportional to 57,365.20, 86,057.12 and 19,947.45

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Solution

The fourth proportional to 57,365.20, 86,057.12 and 19,947.45 is: 29,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,365.20 : 86,057.12 = 19,947.45 : x
  2. Step 2: Convert to fraction form
    57,365.20/86,057.12 = 19,947.45/x
  3. Step 3: Cross multiply
    57,365.20x = 86,057.12 × 19,947.45
  4. Step 4: Simplify right side
    57,365.20x = 1,716,620,098.34
  5. Step 5: Solve for x
    x = 1,716,620,098.34/57,365.20
  6. Step 6: Final answer
    x = 29,924.42

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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.