Home / 45,627.20-68,505.60-28,131.20

Finding the Fourth Proportional to 45,627.20, 68,505.60 and 28,131.20

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Solution

The fourth proportional to 45,627.20, 68,505.60 and 28,131.20 is: 42,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,627.20 : 68,505.60 = 28,131.20 : x
  2. Step 2: Convert to fraction form
    45,627.20/68,505.60 = 28,131.20/x
  3. Step 3: Cross multiply
    45,627.20x = 68,505.60 × 28,131.20
  4. Step 4: Simplify right side
    45,627.20x = 1,927,144,734.72
  5. Step 5: Solve for x
    x = 1,927,144,734.72/45,627.20
  6. Step 6: Final answer
    x = 42,236.75

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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.