Home / 89,983.86-124,178.66-49,698.64

Finding the Fourth Proportional to 89,983.86, 124,178.66 and 49,698.64

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Solution

The fourth proportional to 89,983.86, 124,178.66 and 49,698.64 is: 68,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,983.86 : 124,178.66 = 49,698.64 : x
  2. Step 2: Convert to fraction form
    89,983.86/124,178.66 = 49,698.64/x
  3. Step 3: Cross multiply
    89,983.86x = 124,178.66 × 49,698.64
  4. Step 4: Simplify right side
    89,983.86x = 6,171,510,519.02
  5. Step 5: Solve for x
    x = 6,171,510,519.02/89,983.86
  6. Step 6: Final answer
    x = 68,584.64

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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.