Home / 70,790.94-106,112.58-28,700.07

Finding the Fourth Proportional to 70,790.94, 106,112.58 and 28,700.07

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Solution

The fourth proportional to 70,790.94, 106,112.58 and 28,700.07 is: 43,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,790.94 : 106,112.58 = 28,700.07 : x
  2. Step 2: Convert to fraction form
    70,790.94/106,112.58 = 28,700.07/x
  3. Step 3: Cross multiply
    70,790.94x = 106,112.58 × 28,700.07
  4. Step 4: Simplify right side
    70,790.94x = 3,045,438,473.88
  5. Step 5: Solve for x
    x = 3,045,438,473.88/70,790.94
  6. Step 6: Final answer
    x = 43,020.17

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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.