Home / 73,089.18-109,645.20-30,969.36

Finding the Fourth Proportional to 73,089.18, 109,645.20 and 30,969.36

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Solution

The fourth proportional to 73,089.18, 109,645.20 and 30,969.36 is: 46,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,089.18 : 109,645.20 = 30,969.36 : x
  2. Step 2: Convert to fraction form
    73,089.18/109,645.20 = 30,969.36/x
  3. Step 3: Cross multiply
    73,089.18x = 109,645.20 × 30,969.36
  4. Step 4: Simplify right side
    73,089.18x = 3,395,641,671.07
  5. Step 5: Solve for x
    x = 3,395,641,671.07/73,089.18
  6. Step 6: Final answer
    x = 46,458.88

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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.