Home / 75,511.71-104,206.14-41,520.78

Finding the Fourth Proportional to 75,511.71, 104,206.14 and 41,520.78

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Solution

The fourth proportional to 75,511.71, 104,206.14 and 41,520.78 is: 57,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,511.71 : 104,206.14 = 41,520.78 : x
  2. Step 2: Convert to fraction form
    75,511.71/104,206.14 = 41,520.78/x
  3. Step 3: Cross multiply
    75,511.71x = 104,206.14 × 41,520.78
  4. Step 4: Simplify right side
    75,511.71x = 4,326,720,213.59
  5. Step 5: Solve for x
    x = 4,326,720,213.59/75,511.71
  6. Step 6: Final answer
    x = 57,298.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.