Home / 78,367.12-117,570.57-36,277.54

Finding the Fourth Proportional to 78,367.12, 117,570.57 and 36,277.54

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Solution

The fourth proportional to 78,367.12, 117,570.57 and 36,277.54 is: 54,425.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,367.12 : 117,570.57 = 36,277.54 : x
  2. Step 2: Convert to fraction form
    78,367.12/117,570.57 = 36,277.54/x
  3. Step 3: Cross multiply
    78,367.12x = 117,570.57 × 36,277.54
  4. Step 4: Simplify right side
    78,367.12x = 4,265,171,056.00
  5. Step 5: Solve for x
    x = 4,265,171,056.00/78,367.12
  6. Step 6: Final answer
    x = 54,425.52

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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.