Home / 68,129.12-102,164.51-23,742.74

Finding the Fourth Proportional to 68,129.12, 102,164.51 and 23,742.74

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Solution

The fourth proportional to 68,129.12, 102,164.51 and 23,742.74 is: 35,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129.12 : 102,164.51 = 23,742.74 : x
  2. Step 2: Convert to fraction form
    68,129.12/102,164.51 = 23,742.74/x
  3. Step 3: Cross multiply
    68,129.12x = 102,164.51 × 23,742.74
  4. Step 4: Simplify right side
    68,129.12x = 2,425,664,768.62
  5. Step 5: Solve for x
    x = 2,425,664,768.62/68,129.12
  6. Step 6: Final answer
    x = 35,603.94

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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.