Home / 68,225.63-102,352.16-28,782.57

Finding the Fourth Proportional to 68,225.63, 102,352.16 and 28,782.57

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Solution

The fourth proportional to 68,225.63, 102,352.16 and 28,782.57 is: 43,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,225.63 : 102,352.16 = 28,782.57 : x
  2. Step 2: Convert to fraction form
    68,225.63/102,352.16 = 28,782.57/x
  3. Step 3: Cross multiply
    68,225.63x = 102,352.16 × 28,782.57
  4. Step 4: Simplify right side
    68,225.63x = 2,945,958,281.81
  5. Step 5: Solve for x
    x = 2,945,958,281.81/68,225.63
  6. Step 6: Final answer
    x = 43,179.64

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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.