Home / 65,121.63-89,868.18-36,441.33

Finding the Fourth Proportional to 65,121.63, 89,868.18 and 36,441.33

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Solution

The fourth proportional to 65,121.63, 89,868.18 and 36,441.33 is: 50,289.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.63 : 89,868.18 = 36,441.33 : x
  2. Step 2: Convert to fraction form
    65,121.63/89,868.18 = 36,441.33/x
  3. Step 3: Cross multiply
    65,121.63x = 89,868.18 × 36,441.33
  4. Step 4: Simplify right side
    65,121.63x = 3,274,916,003.88
  5. Step 5: Solve for x
    x = 3,274,916,003.88/65,121.63
  6. Step 6: Final answer
    x = 50,289.22

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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.