Home / 82,706.87-124,072.61-38,338.11

Finding the Fourth Proportional to 82,706.87, 124,072.61 and 38,338.11

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Solution

The fourth proportional to 82,706.87, 124,072.61 and 38,338.11 is: 57,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,706.87 : 124,072.61 = 38,338.11 : x
  2. Step 2: Convert to fraction form
    82,706.87/124,072.61 = 38,338.11/x
  3. Step 3: Cross multiply
    82,706.87x = 124,072.61 × 38,338.11
  4. Step 4: Simplify right side
    82,706.87x = 4,756,709,394.13
  5. Step 5: Solve for x
    x = 4,756,709,394.13/82,706.87
  6. Step 6: Final answer
    x = 57,512.87

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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.