Home / 40,231.20-60,308.40-31,341.60

Finding the Fourth Proportional to 40,231.20, 60,308.40 and 31,341.60

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Solution

The fourth proportional to 40,231.20, 60,308.40 and 31,341.60 is: 46,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,231.20 : 60,308.40 = 31,341.60 : x
  2. Step 2: Convert to fraction form
    40,231.20/60,308.40 = 31,341.60/x
  3. Step 3: Cross multiply
    40,231.20x = 60,308.40 × 31,341.60
  4. Step 4: Simplify right side
    40,231.20x = 1,890,161,749.44
  5. Step 5: Solve for x
    x = 1,890,161,749.44/40,231.20
  6. Step 6: Final answer
    x = 46,982.48

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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.