Home / 45,981.24-68,991.30-19,698.36

Finding the Fourth Proportional to 45,981.24, 68,991.30 and 19,698.36

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Solution

The fourth proportional to 45,981.24, 68,991.30 and 19,698.36 is: 29,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981.24 : 68,991.30 = 19,698.36 : x
  2. Step 2: Convert to fraction form
    45,981.24/68,991.30 = 19,698.36/x
  3. Step 3: Cross multiply
    45,981.24x = 68,991.30 × 19,698.36
  4. Step 4: Simplify right side
    45,981.24x = 1,359,015,464.27
  5. Step 5: Solve for x
    x = 1,359,015,464.27/45,981.24
  6. Step 6: Final answer
    x = 29,555.87

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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.