Home / 68,729.19-103,109.93-21,341.84

Finding the Fourth Proportional to 68,729.19, 103,109.93 and 21,341.84

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Solution

The fourth proportional to 68,729.19, 103,109.93 and 21,341.84 is: 32,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,729.19 : 103,109.93 = 21,341.84 : x
  2. Step 2: Convert to fraction form
    68,729.19/103,109.93 = 21,341.84/x
  3. Step 3: Cross multiply
    68,729.19x = 103,109.93 × 21,341.84
  4. Step 4: Simplify right side
    68,729.19x = 2,200,555,376.24
  5. Step 5: Solve for x
    x = 2,200,555,376.24/68,729.19
  6. Step 6: Final answer
    x = 32,017.77

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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.