Home / 49,561.54-74,341.65-12,121.92

Finding the Fourth Proportional to 49,561.54, 74,341.65 and 12,121.92

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Solution

The fourth proportional to 49,561.54, 74,341.65 and 12,121.92 is: 18,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,561.54 : 74,341.65 = 12,121.92 : x
  2. Step 2: Convert to fraction form
    49,561.54/74,341.65 = 12,121.92/x
  3. Step 3: Cross multiply
    49,561.54x = 74,341.65 × 12,121.92
  4. Step 4: Simplify right side
    49,561.54x = 901,163,533.97
  5. Step 5: Solve for x
    x = 901,163,533.97/49,561.54
  6. Step 6: Final answer
    x = 18,182.72

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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.