Home / 101,021.13-139,439.75-58,590.09

Finding the Fourth Proportional to 101,021.13, 139,439.75 and 58,590.09

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Solution

The fourth proportional to 101,021.13, 139,439.75 and 58,590.09 is: 80,872.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,021.13 : 139,439.75 = 58,590.09 : x
  2. Step 2: Convert to fraction form
    101,021.13/139,439.75 = 58,590.09/x
  3. Step 3: Cross multiply
    101,021.13x = 139,439.75 × 58,590.09
  4. Step 4: Simplify right side
    101,021.13x = 8,169,787,209.13
  5. Step 5: Solve for x
    x = 8,169,787,209.13/101,021.13
  6. Step 6: Final answer
    x = 80,872.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.