Home / 39,865.47-54,997.26-25,521.78

Finding the Fourth Proportional to 39,865.47, 54,997.26 and 25,521.78

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Solution

The fourth proportional to 39,865.47, 54,997.26 and 25,521.78 is: 35,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.47 : 54,997.26 = 25,521.78 : x
  2. Step 2: Convert to fraction form
    39,865.47/54,997.26 = 25,521.78/x
  3. Step 3: Cross multiply
    39,865.47x = 54,997.26 × 25,521.78
  4. Step 4: Simplify right side
    39,865.47x = 1,403,627,970.32
  5. Step 5: Solve for x
    x = 1,403,627,970.32/39,865.47
  6. Step 6: Final answer
    x = 35,209.12

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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.