Home / 57,208.92-78,946.20-31,716.36

Finding the Fourth Proportional to 57,208.92, 78,946.20 and 31,716.36

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Solution

The fourth proportional to 57,208.92, 78,946.20 and 31,716.36 is: 43,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.92 : 78,946.20 = 31,716.36 : x
  2. Step 2: Convert to fraction form
    57,208.92/78,946.20 = 31,716.36/x
  3. Step 3: Cross multiply
    57,208.92x = 78,946.20 × 31,716.36
  4. Step 4: Simplify right side
    57,208.92x = 2,503,886,099.83
  5. Step 5: Solve for x
    x = 2,503,886,099.83/57,208.92
  6. Step 6: Final answer
    x = 43,767.41

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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.