Home / 75,399.16-113,055.67-30,989.38

Finding the Fourth Proportional to 75,399.16, 113,055.67 and 30,989.38

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Solution

The fourth proportional to 75,399.16, 113,055.67 and 30,989.38 is: 46,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,399.16 : 113,055.67 = 30,989.38 : x
  2. Step 2: Convert to fraction form
    75,399.16/113,055.67 = 30,989.38/x
  3. Step 3: Cross multiply
    75,399.16x = 113,055.67 × 30,989.38
  4. Step 4: Simplify right side
    75,399.16x = 3,503,525,118.78
  5. Step 5: Solve for x
    x = 3,503,525,118.78/75,399.16
  6. Step 6: Final answer
    x = 46,466.37

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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.