Home / 72,066.15-108,040.78-29,977.72

Finding the Fourth Proportional to 72,066.15, 108,040.78 and 29,977.72

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Solution

The fourth proportional to 72,066.15, 108,040.78 and 29,977.72 is: 44,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.15 : 108,040.78 = 29,977.72 : x
  2. Step 2: Convert to fraction form
    72,066.15/108,040.78 = 29,977.72/x
  3. Step 3: Cross multiply
    72,066.15x = 108,040.78 × 29,977.72
  4. Step 4: Simplify right side
    72,066.15x = 3,238,816,251.42
  5. Step 5: Solve for x
    x = 3,238,816,251.42/72,066.15
  6. Step 6: Final answer
    x = 44,942.27

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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.