Home / 70,033.23-105,033.83-20,112.93

Finding the Fourth Proportional to 70,033.23, 105,033.83 and 20,112.93

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Solution

The fourth proportional to 70,033.23, 105,033.83 and 20,112.93 is: 30,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,033.23 : 105,033.83 = 20,112.93 : x
  2. Step 2: Convert to fraction form
    70,033.23/105,033.83 = 20,112.93/x
  3. Step 3: Cross multiply
    70,033.23x = 105,033.83 × 20,112.93
  4. Step 4: Simplify right side
    70,033.23x = 2,112,537,969.86
  5. Step 5: Solve for x
    x = 2,112,537,969.86/70,033.23
  6. Step 6: Final answer
    x = 30,164.79

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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.