Home / 82,430.70-123,604.65-40,313.94

Finding the Fourth Proportional to 82,430.70, 123,604.65 and 40,313.94

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Solution

The fourth proportional to 82,430.70, 123,604.65 and 40,313.94 is: 60,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,430.70 : 123,604.65 = 40,313.94 : x
  2. Step 2: Convert to fraction form
    82,430.70/123,604.65 = 40,313.94/x
  3. Step 3: Cross multiply
    82,430.70x = 123,604.65 × 40,313.94
  4. Step 4: Simplify right side
    82,430.70x = 4,982,990,443.82
  5. Step 5: Solve for x
    x = 4,982,990,443.82/82,430.70
  6. Step 6: Final answer
    x = 60,450.66

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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.