Home / 45,107.12-67,680.12-18,817.04

Finding the Fourth Proportional to 45,107.12, 67,680.12 and 18,817.04

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Solution

The fourth proportional to 45,107.12, 67,680.12 and 18,817.04 is: 28,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,107.12 : 67,680.12 = 18,817.04 : x
  2. Step 2: Convert to fraction form
    45,107.12/67,680.12 = 18,817.04/x
  3. Step 3: Cross multiply
    45,107.12x = 67,680.12 × 18,817.04
  4. Step 4: Simplify right side
    45,107.12x = 1,273,539,525.24
  5. Step 5: Solve for x
    x = 1,273,539,525.24/45,107.12
  6. Step 6: Final answer
    x = 28,233.67

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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.