Home / 69,703.20-104,558.81-19,779.39

Finding the Fourth Proportional to 69,703.20, 104,558.81 and 19,779.39

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Solution

The fourth proportional to 69,703.20, 104,558.81 and 19,779.39 is: 29,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,703.20 : 104,558.81 = 19,779.39 : x
  2. Step 2: Convert to fraction form
    69,703.20/104,558.81 = 19,779.39/x
  3. Step 3: Cross multiply
    69,703.20x = 104,558.81 × 19,779.39
  4. Step 4: Simplify right side
    69,703.20x = 2,068,109,382.03
  5. Step 5: Solve for x
    x = 2,068,109,382.03/69,703.20
  6. Step 6: Final answer
    x = 29,670.22

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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.