Home / 90,077.68-124,305.01-49,790.41

Finding the Fourth Proportional to 90,077.68, 124,305.01 and 49,790.41

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Solution

The fourth proportional to 90,077.68, 124,305.01 and 49,790.41 is: 68,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,077.68 : 124,305.01 = 49,790.41 : x
  2. Step 2: Convert to fraction form
    90,077.68/124,305.01 = 49,790.41/x
  3. Step 3: Cross multiply
    90,077.68x = 124,305.01 × 49,790.41
  4. Step 4: Simplify right side
    90,077.68x = 6,189,197,164.43
  5. Step 5: Solve for x
    x = 6,189,197,164.43/90,077.68
  6. Step 6: Final answer
    x = 68,709.55

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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.