Home / 89,563.80-123,615.72-51,349.02

Finding the Fourth Proportional to 89,563.80, 123,615.72 and 51,349.02

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Solution

The fourth proportional to 89,563.80, 123,615.72 and 51,349.02 is: 70,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,563.80 : 123,615.72 = 51,349.02 : x
  2. Step 2: Convert to fraction form
    89,563.80/123,615.72 = 51,349.02/x
  3. Step 3: Cross multiply
    89,563.80x = 123,615.72 × 51,349.02
  4. Step 4: Simplify right side
    89,563.80x = 6,347,546,078.59
  5. Step 5: Solve for x
    x = 6,347,546,078.59/89,563.80
  6. Step 6: Final answer
    x = 70,871.78

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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.