Home / 80,790.32-121,201.86-34,043.18

Finding the Fourth Proportional to 80,790.32, 121,201.86 and 34,043.18

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Solution

The fourth proportional to 80,790.32, 121,201.86 and 34,043.18 is: 51,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,790.32 : 121,201.86 = 34,043.18 : x
  2. Step 2: Convert to fraction form
    80,790.32/121,201.86 = 34,043.18/x
  3. Step 3: Cross multiply
    80,790.32x = 121,201.86 × 34,043.18
  4. Step 4: Simplify right side
    80,790.32x = 4,126,096,736.31
  5. Step 5: Solve for x
    x = 4,126,096,736.31/80,790.32
  6. Step 6: Final answer
    x = 51,071.67

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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.