Home / 78,673.05-108,608.94-53,313.39

Finding the Fourth Proportional to 78,673.05, 108,608.94 and 53,313.39

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Solution

The fourth proportional to 78,673.05, 108,608.94 and 53,313.39 is: 73,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,673.05 : 108,608.94 = 53,313.39 : x
  2. Step 2: Convert to fraction form
    78,673.05/108,608.94 = 53,313.39/x
  3. Step 3: Cross multiply
    78,673.05x = 108,608.94 × 53,313.39
  4. Step 4: Simplify right side
    78,673.05x = 5,790,310,775.71
  5. Step 5: Solve for x
    x = 5,790,310,775.71/78,673.05
  6. Step 6: Final answer
    x = 73,599.67

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1.5x scale

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.