Home / 68,418.74-94,418.29-40,124.98

Finding the Fourth Proportional to 68,418.74, 94,418.29 and 40,124.98

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Solution

The fourth proportional to 68,418.74, 94,418.29 and 40,124.98 is: 55,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,418.74 : 94,418.29 = 40,124.98 : x
  2. Step 2: Convert to fraction form
    68,418.74/94,418.29 = 40,124.98/x
  3. Step 3: Cross multiply
    68,418.74x = 94,418.29 × 40,124.98
  4. Step 4: Simplify right side
    68,418.74x = 3,788,531,997.88
  5. Step 5: Solve for x
    x = 3,788,531,997.88/68,418.74
  6. Step 6: Final answer
    x = 55,372.72

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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.