Home / 49,635.40-74,453.10-28,640.20

Finding the Fourth Proportional to 49,635.40, 74,453.10 and 28,640.20

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Solution

The fourth proportional to 49,635.40, 74,453.10 and 28,640.20 is: 42,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,635.40 : 74,453.10 = 28,640.20 : x
  2. Step 2: Convert to fraction form
    49,635.40/74,453.10 = 28,640.20/x
  3. Step 3: Cross multiply
    49,635.40x = 74,453.10 × 28,640.20
  4. Step 4: Simplify right side
    49,635.40x = 2,132,351,674.62
  5. Step 5: Solve for x
    x = 2,132,351,674.62/49,635.40
  6. Step 6: Final answer
    x = 42,960.30

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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.