Home / 68,971.16-103,448.96-19,058.38

Finding the Fourth Proportional to 68,971.16, 103,448.96 and 19,058.38

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Solution

The fourth proportional to 68,971.16, 103,448.96 and 19,058.38 is: 28,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,971.16 : 103,448.96 = 19,058.38 : x
  2. Step 2: Convert to fraction form
    68,971.16/103,448.96 = 19,058.38/x
  3. Step 3: Cross multiply
    68,971.16x = 103,448.96 × 19,058.38
  4. Step 4: Simplify right side
    68,971.16x = 1,971,569,590.28
  5. Step 5: Solve for x
    x = 1,971,569,590.28/68,971.16
  6. Step 6: Final answer
    x = 28,585.42

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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.