Home / 68,613.72-102,920.34-45,069.84

Finding the Fourth Proportional to 68,613.72, 102,920.34 and 45,069.84

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Solution

The fourth proportional to 68,613.72, 102,920.34 and 45,069.84 is: 67,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,613.72 : 102,920.34 = 45,069.84 : x
  2. Step 2: Convert to fraction form
    68,613.72/102,920.34 = 45,069.84/x
  3. Step 3: Cross multiply
    68,613.72x = 102,920.34 × 45,069.84
  4. Step 4: Simplify right side
    68,613.72x = 4,638,603,256.55
  5. Step 5: Solve for x
    x = 4,638,603,256.55/68,613.72
  6. Step 6: Final answer
    x = 67,604.60

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1.5x scale

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.