Home / 45,850.78-68,771.56-12,574.19

Finding the Fourth Proportional to 45,850.78, 68,771.56 and 12,574.19

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Solution

The fourth proportional to 45,850.78, 68,771.56 and 12,574.19 is: 18,860.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,850.78 : 68,771.56 = 12,574.19 : x
  2. Step 2: Convert to fraction form
    45,850.78/68,771.56 = 12,574.19/x
  3. Step 3: Cross multiply
    45,850.78x = 68,771.56 × 12,574.19
  4. Step 4: Simplify right side
    45,850.78x = 864,746,403.90
  5. Step 5: Solve for x
    x = 864,746,403.90/45,850.78
  6. Step 6: Final answer
    x = 18,860.02

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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.