Home / 39,111.78-53,960.10-25,690.30

Finding the Fourth Proportional to 39,111.78, 53,960.10 and 25,690.30

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Solution

The fourth proportional to 39,111.78, 53,960.10 and 25,690.30 is: 35,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.78 : 53,960.10 = 25,690.30 : x
  2. Step 2: Convert to fraction form
    39,111.78/53,960.10 = 25,690.30/x
  3. Step 3: Cross multiply
    39,111.78x = 53,960.10 × 25,690.30
  4. Step 4: Simplify right side
    39,111.78x = 1,386,251,157.03
  5. Step 5: Solve for x
    x = 1,386,251,157.03/39,111.78
  6. Step 6: Final answer
    x = 35,443.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.