Home / 89,919.79-124,089.32-49,633.56

Finding the Fourth Proportional to 89,919.79, 124,089.32 and 49,633.56

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Solution

The fourth proportional to 89,919.79, 124,089.32 and 49,633.56 is: 68,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.79 : 124,089.32 = 49,633.56 : x
  2. Step 2: Convert to fraction form
    89,919.79/124,089.32 = 49,633.56/x
  3. Step 3: Cross multiply
    89,919.79x = 124,089.32 × 49,633.56
  4. Step 4: Simplify right side
    89,919.79x = 6,158,994,833.66
  5. Step 5: Solve for x
    x = 6,158,994,833.66/89,919.79
  6. Step 6: Final answer
    x = 68,494.32

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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.