Home / 82,214.10-123,313.07-55,730.21

Finding the Fourth Proportional to 82,214.10, 123,313.07 and 55,730.21

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Solution

The fourth proportional to 82,214.10, 123,313.07 and 55,730.21 is: 83,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,214.10 : 123,313.07 = 55,730.21 : x
  2. Step 2: Convert to fraction form
    82,214.10/123,313.07 = 55,730.21/x
  3. Step 3: Cross multiply
    82,214.10x = 123,313.07 × 55,730.21
  4. Step 4: Simplify right side
    82,214.10x = 6,872,263,945.10
  5. Step 5: Solve for x
    x = 6,872,263,945.10/82,214.10
  6. Step 6: Final answer
    x = 83,589.84

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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.