Home / 69,762.08-104,640.80-30,319.24

Finding the Fourth Proportional to 69,762.08, 104,640.80 and 30,319.24

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Solution

The fourth proportional to 69,762.08, 104,640.80 and 30,319.24 is: 45,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,762.08 : 104,640.80 = 30,319.24 : x
  2. Step 2: Convert to fraction form
    69,762.08/104,640.80 = 30,319.24/x
  3. Step 3: Cross multiply
    69,762.08x = 104,640.80 × 30,319.24
  4. Step 4: Simplify right side
    69,762.08x = 3,172,629,528.99
  5. Step 5: Solve for x
    x = 3,172,629,528.99/69,762.08
  6. Step 6: Final answer
    x = 45,477.85

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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.