Home / 69,682.48-104,445.92-30,180.40

Finding the Fourth Proportional to 69,682.48, 104,445.92 and 30,180.40

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Solution

The fourth proportional to 69,682.48, 104,445.92 and 30,180.40 is: 45,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,682.48 : 104,445.92 = 30,180.40 : x
  2. Step 2: Convert to fraction form
    69,682.48/104,445.92 = 30,180.40/x
  3. Step 3: Cross multiply
    69,682.48x = 104,445.92 × 30,180.40
  4. Step 4: Simplify right side
    69,682.48x = 3,152,219,643.97
  5. Step 5: Solve for x
    x = 3,152,219,643.97/69,682.48
  6. Step 6: Final answer
    x = 45,236.90

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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.