Home / 74,167.89-102,351.80-40,176.66

Finding the Fourth Proportional to 74,167.89, 102,351.80 and 40,176.66

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Solution

The fourth proportional to 74,167.89, 102,351.80 and 40,176.66 is: 55,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,167.89 : 102,351.80 = 40,176.66 : x
  2. Step 2: Convert to fraction form
    74,167.89/102,351.80 = 40,176.66/x
  3. Step 3: Cross multiply
    74,167.89x = 102,351.80 × 40,176.66
  4. Step 4: Simplify right side
    74,167.89x = 4,112,153,468.99
  5. Step 5: Solve for x
    x = 4,112,153,468.99/74,167.89
  6. Step 6: Final answer
    x = 55,443.85

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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.