Home / 69,511.48-104,189.46-30,009.40

Finding the Fourth Proportional to 69,511.48, 104,189.46 and 30,009.40

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Solution

The fourth proportional to 69,511.48, 104,189.46 and 30,009.40 is: 44,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,511.48 : 104,189.46 = 30,009.40 : x
  2. Step 2: Convert to fraction form
    69,511.48/104,189.46 = 30,009.40/x
  3. Step 3: Cross multiply
    69,511.48x = 104,189.46 × 30,009.40
  4. Step 4: Simplify right side
    69,511.48x = 3,126,663,180.92
  5. Step 5: Solve for x
    x = 3,126,663,180.92/69,511.48
  6. Step 6: Final answer
    x = 44,980.53

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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.