Home / 49,845.72-74,705.40-20,246.70

Finding the Fourth Proportional to 49,845.72, 74,705.40 and 20,246.70

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Solution

The fourth proportional to 49,845.72, 74,705.40 and 20,246.70 is: 30,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,845.72 : 74,705.40 = 20,246.70 : x
  2. Step 2: Convert to fraction form
    49,845.72/74,705.40 = 20,246.70/x
  3. Step 3: Cross multiply
    49,845.72x = 74,705.40 × 20,246.70
  4. Step 4: Simplify right side
    49,845.72x = 1,512,537,822.18
  5. Step 5: Solve for x
    x = 1,512,537,822.18/49,845.72
  6. Step 6: Final answer
    x = 30,344.39

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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.