Home / 76,971.12-115,476.96-32,599.68

Finding the Fourth Proportional to 76,971.12, 115,476.96 and 32,599.68

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Solution

The fourth proportional to 76,971.12, 115,476.96 and 32,599.68 is: 48,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971.12 : 115,476.96 = 32,599.68 : x
  2. Step 2: Convert to fraction form
    76,971.12/115,476.96 = 32,599.68/x
  3. Step 3: Cross multiply
    76,971.12x = 115,476.96 × 32,599.68
  4. Step 4: Simplify right side
    76,971.12x = 3,764,511,943.37
  5. Step 5: Solve for x
    x = 3,764,511,943.37/76,971.12
  6. Step 6: Final answer
    x = 48,908.11

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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.