Home / 45,435.20-68,175.12-20,492.48

Finding the Fourth Proportional to 45,435.20, 68,175.12 and 20,492.48

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Solution

The fourth proportional to 45,435.20, 68,175.12 and 20,492.48 is: 30,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,435.20 : 68,175.12 = 20,492.48 : x
  2. Step 2: Convert to fraction form
    45,435.20/68,175.12 = 20,492.48/x
  3. Step 3: Cross multiply
    45,435.20x = 68,175.12 × 20,492.48
  4. Step 4: Simplify right side
    45,435.20x = 1,397,077,283.10
  5. Step 5: Solve for x
    x = 1,397,077,283.10/45,435.20
  6. Step 6: Final answer
    x = 30,748.79

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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.