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Finding the Fourth Proportional to 69,454.60, 104,036.10 and 57,790.60

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Solution

The fourth proportional to 69,454.60, 104,036.10 and 57,790.60 is: 86,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,454.60 : 104,036.10 = 57,790.60 : x
  2. Step 2: Convert to fraction form
    69,454.60/104,036.10 = 57,790.60/x
  3. Step 3: Cross multiply
    69,454.60x = 104,036.10 × 57,790.60
  4. Step 4: Simplify right side
    69,454.60x = 6,012,308,640.66
  5. Step 5: Solve for x
    x = 6,012,308,640.66/69,454.60
  6. Step 6: Final answer
    x = 86,564.59

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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.