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Finding the Fourth Proportional to 75,709.41, 104,488.16 and 43,879.65

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Solution

The fourth proportional to 75,709.41, 104,488.16 and 43,879.65 is: 60,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,709.41 : 104,488.16 = 43,879.65 : x
  2. Step 2: Convert to fraction form
    75,709.41/104,488.16 = 43,879.65/x
  3. Step 3: Cross multiply
    75,709.41x = 104,488.16 × 43,879.65
  4. Step 4: Simplify right side
    75,709.41x = 4,584,903,670.55
  5. Step 5: Solve for x
    x = 4,584,903,670.55/75,709.41
  6. Step 6: Final answer
    x = 60,559.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.