Home / 90,624.96-135,730.37-43,273.22

Finding the Fourth Proportional to 90,624.96, 135,730.37 and 43,273.22

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Solution

The fourth proportional to 90,624.96, 135,730.37 and 43,273.22 is: 64,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,624.96 : 135,730.37 = 43,273.22 : x
  2. Step 2: Convert to fraction form
    90,624.96/135,730.37 = 43,273.22/x
  3. Step 3: Cross multiply
    90,624.96x = 135,730.37 × 43,273.22
  4. Step 4: Simplify right side
    90,624.96x = 5,873,489,347.81
  5. Step 5: Solve for x
    x = 5,873,489,347.81/90,624.96
  6. Step 6: Final answer
    x = 64,810.95

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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.