Home / 68,323.20-94,273.92-38,515.20

Finding the Fourth Proportional to 68,323.20, 94,273.92 and 38,515.20

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Solution

The fourth proportional to 68,323.20, 94,273.92 and 38,515.20 is: 53,144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,323.20 : 94,273.92 = 38,515.20 : x
  2. Step 2: Convert to fraction form
    68,323.20/94,273.92 = 38,515.20/x
  3. Step 3: Cross multiply
    68,323.20x = 94,273.92 × 38,515.20
  4. Step 4: Simplify right side
    68,323.20x = 3,630,978,883.58
  5. Step 5: Solve for x
    x = 3,630,978,883.58/68,323.20
  6. Step 6: Final answer
    x = 53,144.16

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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.