Home / 90,093.55-135,152.75-30,921.54

Finding the Fourth Proportional to 90,093.55, 135,152.75 and 30,921.54

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Solution

The fourth proportional to 90,093.55, 135,152.75 and 30,921.54 is: 46,386.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,093.55 : 135,152.75 = 30,921.54 : x
  2. Step 2: Convert to fraction form
    90,093.55/135,152.75 = 30,921.54/x
  3. Step 3: Cross multiply
    90,093.55x = 135,152.75 × 30,921.54
  4. Step 4: Simplify right side
    90,093.55x = 4,179,131,165.24
  5. Step 5: Solve for x
    x = 4,179,131,165.24/90,093.55
  6. Step 6: Final answer
    x = 46,386.57

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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.