Home / 82,450.10-123,529.35-69,911.30

Finding the Fourth Proportional to 82,450.10, 123,529.35 and 69,911.30

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Solution

The fourth proportional to 82,450.10, 123,529.35 and 69,911.30 is: 104,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,450.10 : 123,529.35 = 69,911.30 : x
  2. Step 2: Convert to fraction form
    82,450.10/123,529.35 = 69,911.30/x
  3. Step 3: Cross multiply
    82,450.10x = 123,529.35 × 69,911.30
  4. Step 4: Simplify right side
    82,450.10x = 8,636,097,446.66
  5. Step 5: Solve for x
    x = 8,636,097,446.66/82,450.10
  6. Step 6: Final answer
    x = 104,743.32

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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.