Home / 47,201.18-70,801.97-19,121.78

Finding the Fourth Proportional to 47,201.18, 70,801.97 and 19,121.78

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Solution

The fourth proportional to 47,201.18, 70,801.97 and 19,121.78 is: 28,682.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,201.18 : 70,801.97 = 19,121.78 : x
  2. Step 2: Convert to fraction form
    47,201.18/70,801.97 = 19,121.78/x
  3. Step 3: Cross multiply
    47,201.18x = 70,801.97 × 19,121.78
  4. Step 4: Simplify right side
    47,201.18x = 1,353,859,693.91
  5. Step 5: Solve for x
    x = 1,353,859,693.91/47,201.18
  6. Step 6: Final answer
    x = 28,682.75

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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.