Home / 69,054.23-103,569.81-19,139.38

Finding the Fourth Proportional to 69,054.23, 103,569.81 and 19,139.38

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Solution

The fourth proportional to 69,054.23, 103,569.81 and 19,139.38 is: 28,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,054.23 : 103,569.81 = 19,139.38 : x
  2. Step 2: Convert to fraction form
    69,054.23/103,569.81 = 19,139.38/x
  3. Step 3: Cross multiply
    69,054.23x = 103,569.81 × 19,139.38
  4. Step 4: Simplify right side
    69,054.23x = 1,982,261,432.27
  5. Step 5: Solve for x
    x = 1,982,261,432.27/69,054.23
  6. Step 6: Final answer
    x = 28,705.87

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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.