Home / 57,029.52-78,696.73-31,531.74

Finding the Fourth Proportional to 57,029.52, 78,696.73 and 31,531.74

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Solution

The fourth proportional to 57,029.52, 78,696.73 and 31,531.74 is: 43,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.52 : 78,696.73 = 31,531.74 : x
  2. Step 2: Convert to fraction form
    57,029.52/78,696.73 = 31,531.74/x
  3. Step 3: Cross multiply
    57,029.52x = 78,696.73 × 31,531.74
  4. Step 4: Simplify right side
    57,029.52x = 2,481,444,829.21
  5. Step 5: Solve for x
    x = 2,481,444,829.21/57,029.52
  6. Step 6: Final answer
    x = 43,511.59

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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.