Home / 72,765.12-109,147.68-26,015.16

Finding the Fourth Proportional to 72,765.12, 109,147.68 and 26,015.16

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Solution

The fourth proportional to 72,765.12, 109,147.68 and 26,015.16 is: 39,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,765.12 : 109,147.68 = 26,015.16 : x
  2. Step 2: Convert to fraction form
    72,765.12/109,147.68 = 26,015.16/x
  3. Step 3: Cross multiply
    72,765.12x = 109,147.68 × 26,015.16
  4. Step 4: Simplify right side
    72,765.12x = 2,839,494,358.83
  5. Step 5: Solve for x
    x = 2,839,494,358.83/72,765.12
  6. Step 6: Final answer
    x = 39,022.74

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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.