Home / 51,328.73-70,842.20-49,979.61

Finding the Fourth Proportional to 51,328.73, 70,842.20 and 49,979.61

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Solution

The fourth proportional to 51,328.73, 70,842.20 and 49,979.61 is: 68,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,328.73 : 70,842.20 = 49,979.61 : x
  2. Step 2: Convert to fraction form
    51,328.73/70,842.20 = 49,979.61/x
  3. Step 3: Cross multiply
    51,328.73x = 70,842.20 × 49,979.61
  4. Step 4: Simplify right side
    51,328.73x = 3,540,665,277.64
  5. Step 5: Solve for x
    x = 3,540,665,277.64/51,328.73
  6. Step 6: Final answer
    x = 68,980.19

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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.