Home / 49,749.70-74,515.20-20,152.30

Finding the Fourth Proportional to 49,749.70, 74,515.20 and 20,152.30

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Solution

The fourth proportional to 49,749.70, 74,515.20 and 20,152.30 is: 30,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,749.70 : 74,515.20 = 20,152.30 : x
  2. Step 2: Convert to fraction form
    49,749.70/74,515.20 = 20,152.30/x
  3. Step 3: Cross multiply
    49,749.70x = 74,515.20 × 20,152.30
  4. Step 4: Simplify right side
    49,749.70x = 1,501,652,664.96
  5. Step 5: Solve for x
    x = 1,501,652,664.96/49,749.70
  6. Step 6: Final answer
    x = 30,184.16

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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.