Home / 51,400.40-77,114.32-21,819.92

Finding the Fourth Proportional to 51,400.40, 77,114.32 and 21,819.92

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Solution

The fourth proportional to 51,400.40, 77,114.32 and 21,819.92 is: 32,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.40 : 77,114.32 = 21,819.92 : x
  2. Step 2: Convert to fraction form
    51,400.40/77,114.32 = 21,819.92/x
  3. Step 3: Cross multiply
    51,400.40x = 77,114.32 × 21,819.92
  4. Step 4: Simplify right side
    51,400.40x = 1,682,628,293.25
  5. Step 5: Solve for x
    x = 1,682,628,293.25/51,400.40
  6. Step 6: Final answer
    x = 32,735.70

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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.