Home / 68,788.42-103,182.79-18,869.24

Finding the Fourth Proportional to 68,788.42, 103,182.79 and 18,869.24

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Solution

The fourth proportional to 68,788.42, 103,182.79 and 18,869.24 is: 28,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,788.42 : 103,182.79 = 18,869.24 : x
  2. Step 2: Convert to fraction form
    68,788.42/103,182.79 = 18,869.24/x
  3. Step 3: Cross multiply
    68,788.42x = 103,182.79 × 18,869.24
  4. Step 4: Simplify right side
    68,788.42x = 1,946,980,441.07
  5. Step 5: Solve for x
    x = 1,946,980,441.07/68,788.42
  6. Step 6: Final answer
    x = 28,303.90

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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.