Home / 76,313.29-105,208.72-64,355.67

Finding the Fourth Proportional to 76,313.29, 105,208.72 and 64,355.67

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Solution

The fourth proportional to 76,313.29, 105,208.72 and 64,355.67 is: 88,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,313.29 : 105,208.72 = 64,355.67 : x
  2. Step 2: Convert to fraction form
    76,313.29/105,208.72 = 64,355.67/x
  3. Step 3: Cross multiply
    76,313.29x = 105,208.72 × 64,355.67
  4. Step 4: Simplify right side
    76,313.29x = 6,770,777,665.44
  5. Step 5: Solve for x
    x = 6,770,777,665.44/76,313.29
  6. Step 6: Final answer
    x = 88,723.44

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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.