Home / 49,621.79-74,431.47-12,181.57

Finding the Fourth Proportional to 49,621.79, 74,431.47 and 12,181.57

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Solution

The fourth proportional to 49,621.79, 74,431.47 and 12,181.57 is: 18,272.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,621.79 : 74,431.47 = 12,181.57 : x
  2. Step 2: Convert to fraction form
    49,621.79/74,431.47 = 12,181.57/x
  3. Step 3: Cross multiply
    49,621.79x = 74,431.47 × 12,181.57
  4. Step 4: Simplify right side
    49,621.79x = 906,692,021.61
  5. Step 5: Solve for x
    x = 906,692,021.61/49,621.79
  6. Step 6: Final answer
    x = 18,272.05

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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.