Home / 74,876.98-103,329.43-40,885.37

Finding the Fourth Proportional to 74,876.98, 103,329.43 and 40,885.37

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Solution

The fourth proportional to 74,876.98, 103,329.43 and 40,885.37 is: 56,421.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,876.98 : 103,329.43 = 40,885.37 : x
  2. Step 2: Convert to fraction form
    74,876.98/103,329.43 = 40,885.37/x
  3. Step 3: Cross multiply
    74,876.98x = 103,329.43 × 40,885.37
  4. Step 4: Simplify right side
    74,876.98x = 4,224,661,977.44
  5. Step 5: Solve for x
    x = 4,224,661,977.44/74,876.98
  6. Step 6: Final answer
    x = 56,421.37

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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.