Home / 73,080.18-109,631.70-30,960.36

Finding the Fourth Proportional to 73,080.18, 109,631.70 and 30,960.36

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Solution

The fourth proportional to 73,080.18, 109,631.70 and 30,960.36 is: 46,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,080.18 : 109,631.70 = 30,960.36 : x
  2. Step 2: Convert to fraction form
    73,080.18/109,631.70 = 30,960.36/x
  3. Step 3: Cross multiply
    73,080.18x = 109,631.70 × 30,960.36
  4. Step 4: Simplify right side
    73,080.18x = 3,394,236,899.41
  5. Step 5: Solve for x
    x = 3,394,236,899.41/73,080.18
  6. Step 6: Final answer
    x = 46,445.38

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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.