Home / 90,041.68-135,078.99-30,883.33

Finding the Fourth Proportional to 90,041.68, 135,078.99 and 30,883.33

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Solution

The fourth proportional to 90,041.68, 135,078.99 and 30,883.33 is: 46,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,041.68 : 135,078.99 = 30,883.33 : x
  2. Step 2: Convert to fraction form
    90,041.68/135,078.99 = 30,883.33/x
  3. Step 3: Cross multiply
    90,041.68x = 135,078.99 × 30,883.33
  4. Step 4: Simplify right side
    90,041.68x = 4,171,689,024.24
  5. Step 5: Solve for x
    x = 4,171,689,024.24/90,041.68
  6. Step 6: Final answer
    x = 46,330.64

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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.