Home / 90,623.64-135,935.46-28,299.48

Finding the Fourth Proportional to 90,623.64, 135,935.46 and 28,299.48

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Solution

The fourth proportional to 90,623.64, 135,935.46 and 28,299.48 is: 42,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,623.64 : 135,935.46 = 28,299.48 : x
  2. Step 2: Convert to fraction form
    90,623.64/135,935.46 = 28,299.48/x
  3. Step 3: Cross multiply
    90,623.64x = 135,935.46 × 28,299.48
  4. Step 4: Simplify right side
    90,623.64x = 3,846,902,831.56
  5. Step 5: Solve for x
    x = 3,846,902,831.56/90,623.64
  6. Step 6: Final answer
    x = 42,449.22

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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.