Home / 49,876.96-74,842.98-20,315.61

Finding the Fourth Proportional to 49,876.96, 74,842.98 and 20,315.61

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Solution

The fourth proportional to 49,876.96, 74,842.98 and 20,315.61 is: 30,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,876.96 : 74,842.98 = 20,315.61 : x
  2. Step 2: Convert to fraction form
    49,876.96/74,842.98 = 20,315.61/x
  3. Step 3: Cross multiply
    49,876.96x = 74,842.98 × 20,315.61
  4. Step 4: Simplify right side
    49,876.96x = 1,520,480,792.92
  5. Step 5: Solve for x
    x = 1,520,480,792.92/49,876.96
  6. Step 6: Final answer
    x = 30,484.63

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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.