Home / 89,920.09-124,089.73-49,633.86

Finding the Fourth Proportional to 89,920.09, 124,089.73 and 49,633.86

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Solution

The fourth proportional to 89,920.09, 124,089.73 and 49,633.86 is: 68,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,920.09 : 124,089.73 = 49,633.86 : x
  2. Step 2: Convert to fraction form
    89,920.09/124,089.73 = 49,633.86/x
  3. Step 3: Cross multiply
    89,920.09x = 124,089.73 × 49,633.86
  4. Step 4: Simplify right side
    89,920.09x = 6,159,052,069.10
  5. Step 5: Solve for x
    x = 6,159,052,069.10/89,920.09
  6. Step 6: Final answer
    x = 68,494.73

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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.