Home / 68,712.22-103,536.38-56,505.65

Finding the Fourth Proportional to 68,712.22, 103,536.38 and 56,505.65

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Solution

The fourth proportional to 68,712.22, 103,536.38 and 56,505.65 is: 85,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,712.22 : 103,536.38 = 56,505.65 : x
  2. Step 2: Convert to fraction form
    68,712.22/103,536.38 = 56,505.65/x
  3. Step 3: Cross multiply
    68,712.22x = 103,536.38 × 56,505.65
  4. Step 4: Simplify right side
    68,712.22x = 5,850,390,450.55
  5. Step 5: Solve for x
    x = 5,850,390,450.55/68,712.22
  6. Step 6: Final answer
    x = 85,143.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.