Home / 90,579.92-135,826.20-37,975.28

Finding the Fourth Proportional to 90,579.92, 135,826.20 and 37,975.28

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Solution

The fourth proportional to 90,579.92, 135,826.20 and 37,975.28 is: 56,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,579.92 : 135,826.20 = 37,975.28 : x
  2. Step 2: Convert to fraction form
    90,579.92/135,826.20 = 37,975.28/x
  3. Step 3: Cross multiply
    90,579.92x = 135,826.20 × 37,975.28
  4. Step 4: Simplify right side
    90,579.92x = 5,158,037,976.34
  5. Step 5: Solve for x
    x = 5,158,037,976.34/90,579.92
  6. Step 6: Final answer
    x = 56,944.61

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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.