Home / 80,409.06-110,885.58-74,052.18

Finding the Fourth Proportional to 80,409.06, 110,885.58 and 74,052.18

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Solution

The fourth proportional to 80,409.06, 110,885.58 and 74,052.18 is: 102,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409.06 : 110,885.58 = 74,052.18 : x
  2. Step 2: Convert to fraction form
    80,409.06/110,885.58 = 74,052.18/x
  3. Step 3: Cross multiply
    80,409.06x = 110,885.58 × 74,052.18
  4. Step 4: Simplify right side
    80,409.06x = 8,211,318,929.56
  5. Step 5: Solve for x
    x = 8,211,318,929.56/80,409.06
  6. Step 6: Final answer
    x = 102,119.32

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1.5x scale

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.