Home / 74,180.91-102,369.35-40,189.33

Finding the Fourth Proportional to 74,180.91, 102,369.35 and 40,189.33

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Solution

The fourth proportional to 74,180.91, 102,369.35 and 40,189.33 is: 55,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,180.91 : 102,369.35 = 40,189.33 : x
  2. Step 2: Convert to fraction form
    74,180.91/102,369.35 = 40,189.33/x
  3. Step 3: Cross multiply
    74,180.91x = 102,369.35 × 40,189.33
  4. Step 4: Simplify right side
    74,180.91x = 4,114,155,817.47
  5. Step 5: Solve for x
    x = 4,114,155,817.47/74,180.91
  6. Step 6: Final answer
    x = 55,461.11

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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.