Home / 49,561.79-74,342.03-12,122.18

Finding the Fourth Proportional to 49,561.79, 74,342.03 and 12,122.18

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Solution

The fourth proportional to 49,561.79, 74,342.03 and 12,122.18 is: 18,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,561.79 : 74,342.03 = 12,122.18 : x
  2. Step 2: Convert to fraction form
    49,561.79/74,342.03 = 12,122.18/x
  3. Step 3: Cross multiply
    49,561.79x = 74,342.03 × 12,122.18
  4. Step 4: Simplify right side
    49,561.79x = 901,187,036.90
  5. Step 5: Solve for x
    x = 901,187,036.90/49,561.79
  6. Step 6: Final answer
    x = 18,183.10

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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.