Home / 78,973.92-108,986.94-43,166.34

Finding the Fourth Proportional to 78,973.92, 108,986.94 and 43,166.34

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Solution

The fourth proportional to 78,973.92, 108,986.94 and 43,166.34 is: 59,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,973.92 : 108,986.94 = 43,166.34 : x
  2. Step 2: Convert to fraction form
    78,973.92/108,986.94 = 43,166.34/x
  3. Step 3: Cross multiply
    78,973.92x = 108,986.94 × 43,166.34
  4. Step 4: Simplify right side
    78,973.92x = 4,704,567,307.60
  5. Step 5: Solve for x
    x = 4,704,567,307.60/78,973.92
  6. Step 6: Final answer
    x = 59,571.15

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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.