Home / 51,419.44-77,121.18-19,844.32

Finding the Fourth Proportional to 51,419.44, 77,121.18 and 19,844.32

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Solution

The fourth proportional to 51,419.44, 77,121.18 and 19,844.32 is: 29,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,419.44 : 77,121.18 = 19,844.32 : x
  2. Step 2: Convert to fraction form
    51,419.44/77,121.18 = 19,844.32/x
  3. Step 3: Cross multiply
    51,419.44x = 77,121.18 × 19,844.32
  4. Step 4: Simplify right side
    51,419.44x = 1,530,417,374.70
  5. Step 5: Solve for x
    x = 1,530,417,374.70/51,419.44
  6. Step 6: Final answer
    x = 29,763.40

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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.