Home / 89,361.42-123,318.87-49,077.78

Finding the Fourth Proportional to 89,361.42, 123,318.87 and 49,077.78

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Solution

The fourth proportional to 89,361.42, 123,318.87 and 49,077.78 is: 67,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,361.42 : 123,318.87 = 49,077.78 : x
  2. Step 2: Convert to fraction form
    89,361.42/123,318.87 = 49,077.78/x
  3. Step 3: Cross multiply
    89,361.42x = 123,318.87 × 49,077.78
  4. Step 4: Simplify right side
    89,361.42x = 6,052,216,371.71
  5. Step 5: Solve for x
    x = 6,052,216,371.71/89,361.42
  6. Step 6: Final answer
    x = 67,727.40

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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.