Home / 47,135.20-70,650.96-19,418.08

Finding the Fourth Proportional to 47,135.20, 70,650.96 and 19,418.08

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Solution

The fourth proportional to 47,135.20, 70,650.96 and 19,418.08 is: 29,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,135.20 : 70,650.96 = 19,418.08 : x
  2. Step 2: Convert to fraction form
    47,135.20/70,650.96 = 19,418.08/x
  3. Step 3: Cross multiply
    47,135.20x = 70,650.96 × 19,418.08
  4. Step 4: Simplify right side
    47,135.20x = 1,371,905,993.36
  5. Step 5: Solve for x
    x = 1,371,905,993.36/47,135.20
  6. Step 6: Final answer
    x = 29,105.76

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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.