Home / 74,747.56-103,152.44-40,755.76

Finding the Fourth Proportional to 74,747.56, 103,152.44 and 40,755.76

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Solution

The fourth proportional to 74,747.56, 103,152.44 and 40,755.76 is: 56,243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.56 : 103,152.44 = 40,755.76 : x
  2. Step 2: Convert to fraction form
    74,747.56/103,152.44 = 40,755.76/x
  3. Step 3: Cross multiply
    74,747.56x = 103,152.44 × 40,755.76
  4. Step 4: Simplify right side
    74,747.56x = 4,204,056,088.05
  5. Step 5: Solve for x
    x = 4,204,056,088.05/74,747.56
  6. Step 6: Final answer
    x = 56,243.39

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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.