Home / 56,578.75-78,079.89-31,085.44

Finding the Fourth Proportional to 56,578.75, 78,079.89 and 31,085.44

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Solution

The fourth proportional to 56,578.75, 78,079.89 and 31,085.44 is: 42,898.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,578.75 : 78,079.89 = 31,085.44 : x
  2. Step 2: Convert to fraction form
    56,578.75/78,079.89 = 31,085.44/x
  3. Step 3: Cross multiply
    56,578.75x = 78,079.89 × 31,085.44
  4. Step 4: Simplify right side
    56,578.75x = 2,427,147,735.80
  5. Step 5: Solve for x
    x = 2,427,147,735.80/56,578.75
  6. Step 6: Final answer
    x = 42,898.57

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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.