Home / 68,299.08-102,459.24-28,856.40

Finding the Fourth Proportional to 68,299.08, 102,459.24 and 28,856.40

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Solution

The fourth proportional to 68,299.08, 102,459.24 and 28,856.40 is: 43,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,299.08 : 102,459.24 = 28,856.40 : x
  2. Step 2: Convert to fraction form
    68,299.08/102,459.24 = 28,856.40/x
  3. Step 3: Cross multiply
    68,299.08x = 102,459.24 × 28,856.40
  4. Step 4: Simplify right side
    68,299.08x = 2,956,604,813.14
  5. Step 5: Solve for x
    x = 2,956,604,813.14/68,299.08
  6. Step 6: Final answer
    x = 43,289.09

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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.