Home / 76,511.40-114,757.97-20,355.63

Finding the Fourth Proportional to 76,511.40, 114,757.97 and 20,355.63

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Solution

The fourth proportional to 76,511.40, 114,757.97 and 20,355.63 is: 30,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,511.40 : 114,757.97 = 20,355.63 : x
  2. Step 2: Convert to fraction form
    76,511.40/114,757.97 = 20,355.63/x
  3. Step 3: Cross multiply
    76,511.40x = 114,757.97 × 20,355.63
  4. Step 4: Simplify right side
    76,511.40x = 2,335,970,675.09
  5. Step 5: Solve for x
    x = 2,335,970,675.09/76,511.40
  6. Step 6: Final answer
    x = 30,531.01

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1.5x scale

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.