Home / 47,103.40-70,636.86-20,793.64

Finding the Fourth Proportional to 47,103.40, 70,636.86 and 20,793.64

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Solution

The fourth proportional to 47,103.40, 70,636.86 and 20,793.64 is: 31,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,103.40 : 70,636.86 = 20,793.64 : x
  2. Step 2: Convert to fraction form
    47,103.40/70,636.86 = 20,793.64/x
  3. Step 3: Cross multiply
    47,103.40x = 70,636.86 × 20,793.64
  4. Step 4: Simplify right side
    47,103.40x = 1,468,797,437.57
  5. Step 5: Solve for x
    x = 1,468,797,437.57/47,103.40
  6. Step 6: Final answer
    x = 31,182.41

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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.