Home / 98,382.09-135,766.65-55,940.62

Finding the Fourth Proportional to 98,382.09, 135,766.65 and 55,940.62

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Solution

The fourth proportional to 98,382.09, 135,766.65 and 55,940.62 is: 77,197.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,382.09 : 135,766.65 = 55,940.62 : x
  2. Step 2: Convert to fraction form
    98,382.09/135,766.65 = 55,940.62/x
  3. Step 3: Cross multiply
    98,382.09x = 135,766.65 × 55,940.62
  4. Step 4: Simplify right side
    98,382.09x = 7,594,870,576.32
  5. Step 5: Solve for x
    x = 7,594,870,576.32/98,382.09
  6. Step 6: Final answer
    x = 77,197.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.