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Finding the Fourth Proportional to 69,488.48, 104,238.87 and 19,569.02

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Solution

The fourth proportional to 69,488.48, 104,238.87 and 19,569.02 is: 29,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,488.48 : 104,238.87 = 19,569.02 : x
  2. Step 2: Convert to fraction form
    69,488.48/104,238.87 = 19,569.02/x
  3. Step 3: Cross multiply
    69,488.48x = 104,238.87 × 19,569.02
  4. Step 4: Simplify right side
    69,488.48x = 2,039,852,531.81
  5. Step 5: Solve for x
    x = 2,039,852,531.81/69,488.48
  6. Step 6: Final answer
    x = 29,355.26

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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.