Home / 89,979.73-135,052.62-45,637.61

Finding the Fourth Proportional to 89,979.73, 135,052.62 and 45,637.61

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Solution

The fourth proportional to 89,979.73, 135,052.62 and 45,637.61 is: 68,498.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,979.73 : 135,052.62 = 45,637.61 : x
  2. Step 2: Convert to fraction form
    89,979.73/135,052.62 = 45,637.61/x
  3. Step 3: Cross multiply
    89,979.73x = 135,052.62 × 45,637.61
  4. Step 4: Simplify right side
    89,979.73x = 6,163,479,138.67
  5. Step 5: Solve for x
    x = 6,163,479,138.67/89,979.73
  6. Step 6: Final answer
    x = 68,498.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.