Home / 90,020.49-124,226.81-49,183.74

Finding the Fourth Proportional to 90,020.49, 124,226.81 and 49,183.74

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Solution

The fourth proportional to 90,020.49, 124,226.81 and 49,183.74 is: 67,872.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,020.49 : 124,226.81 = 49,183.74 : x
  2. Step 2: Convert to fraction form
    90,020.49/124,226.81 = 49,183.74/x
  3. Step 3: Cross multiply
    90,020.49x = 124,226.81 × 49,183.74
  4. Step 4: Simplify right side
    90,020.49x = 6,109,938,928.69
  5. Step 5: Solve for x
    x = 6,109,938,928.69/90,020.49
  6. Step 6: Final answer
    x = 67,872.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.