Home / 56,908.20-78,532.70-31,414.76

Finding the Fourth Proportional to 56,908.20, 78,532.70 and 31,414.76

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Solution

The fourth proportional to 56,908.20, 78,532.70 and 31,414.76 is: 43,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,908.20 : 78,532.70 = 31,414.76 : x
  2. Step 2: Convert to fraction form
    56,908.20/78,532.70 = 31,414.76/x
  3. Step 3: Cross multiply
    56,908.20x = 78,532.70 × 31,414.76
  4. Step 4: Simplify right side
    56,908.20x = 2,467,085,922.65
  5. Step 5: Solve for x
    x = 2,467,085,922.65/56,908.20
  6. Step 6: Final answer
    x = 43,352.03

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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.