Home / 75,415.41-104,061.69-43,578.15

Finding the Fourth Proportional to 75,415.41, 104,061.69 and 43,578.15

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Solution

The fourth proportional to 75,415.41, 104,061.69 and 43,578.15 is: 60,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.41 : 104,061.69 = 43,578.15 : x
  2. Step 2: Convert to fraction form
    75,415.41/104,061.69 = 43,578.15/x
  3. Step 3: Cross multiply
    75,415.41x = 104,061.69 × 43,578.15
  4. Step 4: Simplify right side
    75,415.41x = 4,534,815,936.07
  5. Step 5: Solve for x
    x = 4,534,815,936.07/75,415.41
  6. Step 6: Final answer
    x = 60,131.16

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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.