Home / 68,528.32-102,722.46-38,883.53

Finding the Fourth Proportional to 68,528.32, 102,722.46 and 38,883.53

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Solution

The fourth proportional to 68,528.32, 102,722.46 and 38,883.53 is: 58,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528.32 : 102,722.46 = 38,883.53 : x
  2. Step 2: Convert to fraction form
    68,528.32/102,722.46 = 38,883.53/x
  3. Step 3: Cross multiply
    68,528.32x = 102,722.46 × 38,883.53
  4. Step 4: Simplify right side
    68,528.32x = 3,994,211,855.08
  5. Step 5: Solve for x
    x = 3,994,211,855.08/68,528.32
  6. Step 6: Final answer
    x = 58,285.57

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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.