Home / 39,388.87-53,921.65-39,107.45

Finding the Fourth Proportional to 39,388.87, 53,921.65 and 39,107.45

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Solution

The fourth proportional to 39,388.87, 53,921.65 and 39,107.45 is: 53,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.87 : 53,921.65 = 39,107.45 : x
  2. Step 2: Convert to fraction form
    39,388.87/53,921.65 = 39,107.45/x
  3. Step 3: Cross multiply
    39,388.87x = 53,921.65 × 39,107.45
  4. Step 4: Simplify right side
    39,388.87x = 2,108,738,231.29
  5. Step 5: Solve for x
    x = 2,108,738,231.29/39,388.87
  6. Step 6: Final answer
    x = 53,536.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.