Home / 50,910.12-76,376.22-21,312.72

Finding the Fourth Proportional to 50,910.12, 76,376.22 and 21,312.72

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Solution

The fourth proportional to 50,910.12, 76,376.22 and 21,312.72 is: 31,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,910.12 : 76,376.22 = 21,312.72 : x
  2. Step 2: Convert to fraction form
    50,910.12/76,376.22 = 21,312.72/x
  3. Step 3: Cross multiply
    50,910.12x = 76,376.22 × 21,312.72
  4. Step 4: Simplify right side
    50,910.12x = 1,627,784,991.52
  5. Step 5: Solve for x
    x = 1,627,784,991.52/50,910.12
  6. Step 6: Final answer
    x = 31,973.70

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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.