Home / 51,629.84-71,242.83-30,405

Finding the Fourth Proportional to 51,629.84, 71,242.83 and 30,405

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Solution

The fourth proportional to 51,629.84, 71,242.83 and 30,405 is: 41,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,629.84 : 71,242.83 = 30,405 : x
  2. Step 2: Convert to fraction form
    51,629.84/71,242.83 = 30,405/x
  3. Step 3: Cross multiply
    51,629.84x = 71,242.83 × 30,405
  4. Step 4: Simplify right side
    51,629.84x = 2,166,138,246.15
  5. Step 5: Solve for x
    x = 2,166,138,246.15/51,629.84
  6. Step 6: Final answer
    x = 41,955.16

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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.