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Finding the Fourth Proportional to 69,295.55, 103,927.43 and 19,379.16

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Solution

The fourth proportional to 69,295.55, 103,927.43 and 19,379.16 is: 29,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,295.55 : 103,927.43 = 19,379.16 : x
  2. Step 2: Convert to fraction form
    69,295.55/103,927.43 = 19,379.16/x
  3. Step 3: Cross multiply
    69,295.55x = 103,927.43 × 19,379.16
  4. Step 4: Simplify right side
    69,295.55x = 2,014,026,342.81
  5. Step 5: Solve for x
    x = 2,014,026,342.81/69,295.55
  6. Step 6: Final answer
    x = 29,064.30

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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.