Home / 89,919.72-124,080.36-49,630.89

Finding the Fourth Proportional to 89,919.72, 124,080.36 and 49,630.89

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Solution

The fourth proportional to 89,919.72, 124,080.36 and 49,630.89 is: 68,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.72 : 124,080.36 = 49,630.89 : x
  2. Step 2: Convert to fraction form
    89,919.72/124,080.36 = 49,630.89/x
  3. Step 3: Cross multiply
    89,919.72x = 124,080.36 × 49,630.89
  4. Step 4: Simplify right side
    89,919.72x = 6,158,218,698.32
  5. Step 5: Solve for x
    x = 6,158,218,698.32/89,919.72
  6. Step 6: Final answer
    x = 68,485.74

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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.