Home / 77,068.49-115,604.79-27,137.23

Finding the Fourth Proportional to 77,068.49, 115,604.79 and 27,137.23

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Solution

The fourth proportional to 77,068.49, 115,604.79 and 27,137.23 is: 40,706.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,068.49 : 115,604.79 = 27,137.23 : x
  2. Step 2: Convert to fraction form
    77,068.49/115,604.79 = 27,137.23/x
  3. Step 3: Cross multiply
    77,068.49x = 115,604.79 × 27,137.23
  4. Step 4: Simplify right side
    77,068.49x = 3,137,193,639.65
  5. Step 5: Solve for x
    x = 3,137,193,639.65/77,068.49
  6. Step 6: Final answer
    x = 40,706.57

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1.5x scale

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.