Home / 79,163.07-118,743.39-31,790.22

Finding the Fourth Proportional to 79,163.07, 118,743.39 and 31,790.22

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Solution

The fourth proportional to 79,163.07, 118,743.39 and 31,790.22 is: 47,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,163.07 : 118,743.39 = 31,790.22 : x
  2. Step 2: Convert to fraction form
    79,163.07/118,743.39 = 31,790.22/x
  3. Step 3: Cross multiply
    79,163.07x = 118,743.39 × 31,790.22
  4. Step 4: Simplify right side
    79,163.07x = 3,774,878,491.65
  5. Step 5: Solve for x
    x = 3,774,878,491.65/79,163.07
  6. Step 6: Final answer
    x = 47,684.84

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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.