Home / 45,334.70-68,002.05-28,640.60

Finding the Fourth Proportional to 45,334.70, 68,002.05 and 28,640.60

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Solution

The fourth proportional to 45,334.70, 68,002.05 and 28,640.60 is: 42,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,334.70 : 68,002.05 = 28,640.60 : x
  2. Step 2: Convert to fraction form
    45,334.70/68,002.05 = 28,640.60/x
  3. Step 3: Cross multiply
    45,334.70x = 68,002.05 × 28,640.60
  4. Step 4: Simplify right side
    45,334.70x = 1,947,619,513.23
  5. Step 5: Solve for x
    x = 1,947,619,513.23/45,334.70
  6. Step 6: Final answer
    x = 42,960.90

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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.