Home / 69,875.20-104,856-28,322.56

Finding the Fourth Proportional to 69,875.20, 104,856 and 28,322.56

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Solution

The fourth proportional to 69,875.20, 104,856 and 28,322.56 is: 42,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,875.20 : 104,856 = 28,322.56 : x
  2. Step 2: Convert to fraction form
    69,875.20/104,856 = 28,322.56/x
  3. Step 3: Cross multiply
    69,875.20x = 104,856 × 28,322.56
  4. Step 4: Simplify right side
    69,875.20x = 2,969,790,351.36
  5. Step 5: Solve for x
    x = 2,969,790,351.36/69,875.20
  6. Step 6: Final answer
    x = 42,501.35

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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.