Home / 90,221.52-135,341.37-31,049.40

Finding the Fourth Proportional to 90,221.52, 135,341.37 and 31,049.40

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Solution

The fourth proportional to 90,221.52, 135,341.37 and 31,049.40 is: 46,577.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221.52 : 135,341.37 = 31,049.40 : x
  2. Step 2: Convert to fraction form
    90,221.52/135,341.37 = 31,049.40/x
  3. Step 3: Cross multiply
    90,221.52x = 135,341.37 × 31,049.40
  4. Step 4: Simplify right side
    90,221.52x = 4,202,268,333.68
  5. Step 5: Solve for x
    x = 4,202,268,333.68/90,221.52
  6. Step 6: Final answer
    x = 46,577.23

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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.