Home / 56,578.56-78,043.92-40,684.56

Finding the Fourth Proportional to 56,578.56, 78,043.92 and 40,684.56

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Solution

The fourth proportional to 56,578.56, 78,043.92 and 40,684.56 is: 56,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,578.56 : 78,043.92 = 40,684.56 : x
  2. Step 2: Convert to fraction form
    56,578.56/78,043.92 = 40,684.56/x
  3. Step 3: Cross multiply
    56,578.56x = 78,043.92 × 40,684.56
  4. Step 4: Simplify right side
    56,578.56x = 3,175,182,545.88
  5. Step 5: Solve for x
    x = 3,175,182,545.88/56,578.56
  6. Step 6: Final answer
    x = 56,119.89

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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.