Home / 40,249.20-60,335.40-31,359.60

Finding the Fourth Proportional to 40,249.20, 60,335.40 and 31,359.60

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Solution

The fourth proportional to 40,249.20, 60,335.40 and 31,359.60 is: 47,009.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,249.20 : 60,335.40 = 31,359.60 : x
  2. Step 2: Convert to fraction form
    40,249.20/60,335.40 = 31,359.60/x
  3. Step 3: Cross multiply
    40,249.20x = 60,335.40 × 31,359.60
  4. Step 4: Simplify right side
    40,249.20x = 1,892,094,009.84
  5. Step 5: Solve for x
    x = 1,892,094,009.84/40,249.20
  6. Step 6: Final answer
    x = 47,009.48

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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.