Home / 45,478.74-68,185.26-19,169.10

Finding the Fourth Proportional to 45,478.74, 68,185.26 and 19,169.10

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Solution

The fourth proportional to 45,478.74, 68,185.26 and 19,169.10 is: 28,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,478.74 : 68,185.26 = 19,169.10 : x
  2. Step 2: Convert to fraction form
    45,478.74/68,185.26 = 19,169.10/x
  3. Step 3: Cross multiply
    45,478.74x = 68,185.26 × 19,169.10
  4. Step 4: Simplify right side
    45,478.74x = 1,307,050,067.47
  5. Step 5: Solve for x
    x = 1,307,050,067.47/45,478.74
  6. Step 6: Final answer
    x = 28,739.80

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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.