Home / 82,069.81-123,117.89-34,685.37

Finding the Fourth Proportional to 82,069.81, 123,117.89 and 34,685.37

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Solution

The fourth proportional to 82,069.81, 123,117.89 and 34,685.37 is: 52,033.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,069.81 : 123,117.89 = 34,685.37 : x
  2. Step 2: Convert to fraction form
    82,069.81/123,117.89 = 34,685.37/x
  3. Step 3: Cross multiply
    82,069.81x = 123,117.89 × 34,685.37
  4. Step 4: Simplify right side
    82,069.81x = 4,270,389,394.84
  5. Step 5: Solve for x
    x = 4,270,389,394.84/82,069.81
  6. Step 6: Final answer
    x = 52,033.62

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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.