Home / 79,380.12-119,058.96-26,782.68

Finding the Fourth Proportional to 79,380.12, 119,058.96 and 26,782.68

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Solution

The fourth proportional to 79,380.12, 119,058.96 and 26,782.68 is: 40,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380.12 : 119,058.96 = 26,782.68 : x
  2. Step 2: Convert to fraction form
    79,380.12/119,058.96 = 26,782.68/x
  3. Step 3: Cross multiply
    79,380.12x = 119,058.96 × 26,782.68
  4. Step 4: Simplify right side
    79,380.12x = 3,188,718,026.81
  5. Step 5: Solve for x
    x = 3,188,718,026.81/79,380.12
  6. Step 6: Final answer
    x = 40,170.23

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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.