Home / 221,621.63-332,432.44-55,409.63

Finding the Fourth Proportional to 221,621.63, 332,432.44 and 55,409.63

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Solution

The fourth proportional to 221,621.63, 332,432.44 and 55,409.63 is: 83,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,621.63 : 332,432.44 = 55,409.63 : x
  2. Step 2: Convert to fraction form
    221,621.63/332,432.44 = 55,409.63/x
  3. Step 3: Cross multiply
    221,621.63x = 332,432.44 × 55,409.63
  4. Step 4: Simplify right side
    221,621.63x = 18,419,956,699.71
  5. Step 5: Solve for x
    x = 18,419,956,699.71/221,621.63
  6. Step 6: Final answer
    x = 83,114.44

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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.