Home / 76,201.20-114,301.80-31,827.60

Finding the Fourth Proportional to 76,201.20, 114,301.80 and 31,827.60

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Solution

The fourth proportional to 76,201.20, 114,301.80 and 31,827.60 is: 47,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,201.20 : 114,301.80 = 31,827.60 : x
  2. Step 2: Convert to fraction form
    76,201.20/114,301.80 = 31,827.60/x
  3. Step 3: Cross multiply
    76,201.20x = 114,301.80 × 31,827.60
  4. Step 4: Simplify right side
    76,201.20x = 3,637,951,969.68
  5. Step 5: Solve for x
    x = 3,637,951,969.68/76,201.20
  6. Step 6: Final answer
    x = 47,741.40

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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.