Home / 69,470.47-104,120.21-39,509.85

Finding the Fourth Proportional to 69,470.47, 104,120.21 and 39,509.85

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Solution

The fourth proportional to 69,470.47, 104,120.21 and 39,509.85 is: 59,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,470.47 : 104,120.21 = 39,509.85 : x
  2. Step 2: Convert to fraction form
    69,470.47/104,120.21 = 39,509.85/x
  3. Step 3: Cross multiply
    69,470.47x = 104,120.21 × 39,509.85
  4. Step 4: Simplify right side
    69,470.47x = 4,113,773,879.07
  5. Step 5: Solve for x
    x = 4,113,773,879.07/69,470.47
  6. Step 6: Final answer
    x = 59,216.15

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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.