Home / 74,176.25-102,363.53-40,184.79

Finding the Fourth Proportional to 74,176.25, 102,363.53 and 40,184.79

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Solution

The fourth proportional to 74,176.25, 102,363.53 and 40,184.79 is: 55,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,176.25 : 102,363.53 = 40,184.79 : x
  2. Step 2: Convert to fraction form
    74,176.25/102,363.53 = 40,184.79/x
  3. Step 3: Cross multiply
    74,176.25x = 102,363.53 × 40,184.79
  4. Step 4: Simplify right side
    74,176.25x = 4,113,456,755.78
  5. Step 5: Solve for x
    x = 4,113,456,755.78/74,176.25
  6. Step 6: Final answer
    x = 55,455.18

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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.