Home / 89,309.12-133,963.60-26,979.60

Finding the Fourth Proportional to 89,309.12, 133,963.60 and 26,979.60

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Solution

The fourth proportional to 89,309.12, 133,963.60 and 26,979.60 is: 40,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,309.12 : 133,963.60 = 26,979.60 : x
  2. Step 2: Convert to fraction form
    89,309.12/133,963.60 = 26,979.60/x
  3. Step 3: Cross multiply
    89,309.12x = 133,963.60 × 26,979.60
  4. Step 4: Simplify right side
    89,309.12x = 3,614,284,342.56
  5. Step 5: Solve for x
    x = 3,614,284,342.56/89,309.12
  6. Step 6: Final answer
    x = 40,469.38

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1.5x scale

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.