Home / 40,121.12-55,393.07-25,787.36

Finding the Fourth Proportional to 40,121.12, 55,393.07 and 25,787.36

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Solution

The fourth proportional to 40,121.12, 55,393.07 and 25,787.36 is: 35,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.12 : 55,393.07 = 25,787.36 : x
  2. Step 2: Convert to fraction form
    40,121.12/55,393.07 = 25,787.36/x
  3. Step 3: Cross multiply
    40,121.12x = 55,393.07 × 25,787.36
  4. Step 4: Simplify right side
    40,121.12x = 1,428,441,047.14
  5. Step 5: Solve for x
    x = 1,428,441,047.14/40,121.12
  6. Step 6: Final answer
    x = 35,603.22

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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.