Home / 68,286.39-102,428.36-26,155.05

Finding the Fourth Proportional to 68,286.39, 102,428.36 and 26,155.05

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Solution

The fourth proportional to 68,286.39, 102,428.36 and 26,155.05 is: 39,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,286.39 : 102,428.36 = 26,155.05 : x
  2. Step 2: Convert to fraction form
    68,286.39/102,428.36 = 26,155.05/x
  3. Step 3: Cross multiply
    68,286.39x = 102,428.36 × 26,155.05
  4. Step 4: Simplify right side
    68,286.39x = 2,679,018,877.22
  5. Step 5: Solve for x
    x = 2,679,018,877.22/68,286.39
  6. Step 6: Final answer
    x = 39,232.11

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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.