Home / 47,820.30-71,644.05-40,908.30

Finding the Fourth Proportional to 47,820.30, 71,644.05 and 40,908.30

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Solution

The fourth proportional to 47,820.30, 71,644.05 and 40,908.30 is: 61,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,820.30 : 71,644.05 = 40,908.30 : x
  2. Step 2: Convert to fraction form
    47,820.30/71,644.05 = 40,908.30/x
  3. Step 3: Cross multiply
    47,820.30x = 71,644.05 × 40,908.30
  4. Step 4: Simplify right side
    47,820.30x = 2,930,836,290.62
  5. Step 5: Solve for x
    x = 2,930,836,290.62/47,820.30
  6. Step 6: Final answer
    x = 61,288.54

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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.