Home / 78,093.42-117,188.31-30,700.20

Finding the Fourth Proportional to 78,093.42, 117,188.31 and 30,700.20

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Solution

The fourth proportional to 78,093.42, 117,188.31 and 30,700.20 is: 46,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,093.42 : 117,188.31 = 30,700.20 : x
  2. Step 2: Convert to fraction form
    78,093.42/117,188.31 = 30,700.20/x
  3. Step 3: Cross multiply
    78,093.42x = 117,188.31 × 30,700.20
  4. Step 4: Simplify right side
    78,093.42x = 3,597,704,554.66
  5. Step 5: Solve for x
    x = 3,597,704,554.66/78,093.42
  6. Step 6: Final answer
    x = 46,069.24

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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.