Home / 47,179.20-70,749.84-20,866.08

Finding the Fourth Proportional to 47,179.20, 70,749.84 and 20,866.08

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Solution

The fourth proportional to 47,179.20, 70,749.84 and 20,866.08 is: 31,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,179.20 : 70,749.84 = 20,866.08 : x
  2. Step 2: Convert to fraction form
    47,179.20/70,749.84 = 20,866.08/x
  3. Step 3: Cross multiply
    47,179.20x = 70,749.84 × 20,866.08
  4. Step 4: Simplify right side
    47,179.20x = 1,476,271,821.43
  5. Step 5: Solve for x
    x = 1,476,271,821.43/47,179.20
  6. Step 6: Final answer
    x = 31,290.73

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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.