Home / 90,187.58-135,287.31-23,629.34

Finding the Fourth Proportional to 90,187.58, 135,287.31 and 23,629.34

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Solution

The fourth proportional to 90,187.58, 135,287.31 and 23,629.34 is: 35,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,187.58 : 135,287.31 = 23,629.34 : x
  2. Step 2: Convert to fraction form
    90,187.58/135,287.31 = 23,629.34/x
  3. Step 3: Cross multiply
    90,187.58x = 135,287.31 × 23,629.34
  4. Step 4: Simplify right side
    90,187.58x = 3,196,749,845.68
  5. Step 5: Solve for x
    x = 3,196,749,845.68/90,187.58
  6. Step 6: Final answer
    x = 35,445.57

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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.