Home / 65,322.33-90,161.15-40,157.25

Finding the Fourth Proportional to 65,322.33, 90,161.15 and 40,157.25

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Solution

The fourth proportional to 65,322.33, 90,161.15 and 40,157.25 is: 55,427.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,322.33 : 90,161.15 = 40,157.25 : x
  2. Step 2: Convert to fraction form
    65,322.33/90,161.15 = 40,157.25/x
  3. Step 3: Cross multiply
    65,322.33x = 90,161.15 × 40,157.25
  4. Step 4: Simplify right side
    65,322.33x = 3,620,623,640.05
  5. Step 5: Solve for x
    x = 3,620,623,640.05/65,322.33
  6. Step 6: Final answer
    x = 55,427.04

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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.