Home / 68,499.15-94,539.20-40,217.55

Finding the Fourth Proportional to 68,499.15, 94,539.20 and 40,217.55

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Solution

The fourth proportional to 68,499.15, 94,539.20 and 40,217.55 is: 55,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,499.15 : 94,539.20 = 40,217.55 : x
  2. Step 2: Convert to fraction form
    68,499.15/94,539.20 = 40,217.55/x
  3. Step 3: Cross multiply
    68,499.15x = 94,539.20 × 40,217.55
  4. Step 4: Simplify right side
    68,499.15x = 3,802,134,801.87
  5. Step 5: Solve for x
    x = 3,802,134,801.87/68,499.15
  6. Step 6: Final answer
    x = 55,506.31

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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.