Home / 80,258.12-120,420.77-35,256.26

Finding the Fourth Proportional to 80,258.12, 120,420.77 and 35,256.26

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Solution

The fourth proportional to 80,258.12, 120,420.77 and 35,256.26 is: 52,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,258.12 : 120,420.77 = 35,256.26 : x
  2. Step 2: Convert to fraction form
    80,258.12/120,420.77 = 35,256.26/x
  3. Step 3: Cross multiply
    80,258.12x = 120,420.77 × 35,256.26
  4. Step 4: Simplify right side
    80,258.12x = 4,245,585,914.13
  5. Step 5: Solve for x
    x = 4,245,585,914.13/80,258.12
  6. Step 6: Final answer
    x = 52,899.15

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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.