Home / 80,763.96-121,120.06-26,718.60

Finding the Fourth Proportional to 80,763.96, 121,120.06 and 26,718.60

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Solution

The fourth proportional to 80,763.96, 121,120.06 and 26,718.60 is: 40,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.96 : 121,120.06 = 26,718.60 : x
  2. Step 2: Convert to fraction form
    80,763.96/121,120.06 = 26,718.60/x
  3. Step 3: Cross multiply
    80,763.96x = 121,120.06 × 26,718.60
  4. Step 4: Simplify right side
    80,763.96x = 3,236,158,435.12
  5. Step 5: Solve for x
    x = 3,236,158,435.12/80,763.96
  6. Step 6: Final answer
    x = 40,069.34

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1.5x scale

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.