Home / 49,811.87-74,718.83-20,209.46

Finding the Fourth Proportional to 49,811.87, 74,718.83 and 20,209.46

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Solution

The fourth proportional to 49,811.87, 74,718.83 and 20,209.46 is: 30,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,811.87 : 74,718.83 = 20,209.46 : x
  2. Step 2: Convert to fraction form
    49,811.87/74,718.83 = 20,209.46/x
  3. Step 3: Cross multiply
    49,811.87x = 74,718.83 × 20,209.46
  4. Step 4: Simplify right side
    49,811.87x = 1,510,026,731.49
  5. Step 5: Solve for x
    x = 1,510,026,731.49/49,811.87
  6. Step 6: Final answer
    x = 30,314.60

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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.