Home / 40,072.19-60,111.41-13,418.28

Finding the Fourth Proportional to 40,072.19, 60,111.41 and 13,418.28

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Solution

The fourth proportional to 40,072.19, 60,111.41 and 13,418.28 is: 20,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,072.19 : 60,111.41 = 13,418.28 : x
  2. Step 2: Convert to fraction form
    40,072.19/60,111.41 = 13,418.28/x
  3. Step 3: Cross multiply
    40,072.19x = 60,111.41 × 13,418.28
  4. Step 4: Simplify right side
    40,072.19x = 806,591,362.93
  5. Step 5: Solve for x
    x = 806,591,362.93/40,072.19
  6. Step 6: Final answer
    x = 20,128.46

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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.