Home / 74,226.36-111,328.74-21,621.72

Finding the Fourth Proportional to 74,226.36, 111,328.74 and 21,621.72

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Solution

The fourth proportional to 74,226.36, 111,328.74 and 21,621.72 is: 32,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,226.36 : 111,328.74 = 21,621.72 : x
  2. Step 2: Convert to fraction form
    74,226.36/111,328.74 = 21,621.72/x
  3. Step 3: Cross multiply
    74,226.36x = 111,328.74 × 21,621.72
  4. Step 4: Simplify right side
    74,226.36x = 2,407,118,844.23
  5. Step 5: Solve for x
    x = 2,407,118,844.23/74,226.36
  6. Step 6: Final answer
    x = 32,429.43

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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.