Home / 78,615.06-117,923.50-33,630.30

Finding the Fourth Proportional to 78,615.06, 117,923.50 and 33,630.30

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Solution

The fourth proportional to 78,615.06, 117,923.50 and 33,630.30 is: 50,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,615.06 : 117,923.50 = 33,630.30 : x
  2. Step 2: Convert to fraction form
    78,615.06/117,923.50 = 33,630.30/x
  3. Step 3: Cross multiply
    78,615.06x = 117,923.50 × 33,630.30
  4. Step 4: Simplify right side
    78,615.06x = 3,965,802,682.05
  5. Step 5: Solve for x
    x = 3,965,802,682.05/78,615.06
  6. Step 6: Final answer
    x = 50,445.84

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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.