Home / 74,146.33-102,321.98-40,155.08

Finding the Fourth Proportional to 74,146.33, 102,321.98 and 40,155.08

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Solution

The fourth proportional to 74,146.33, 102,321.98 and 40,155.08 is: 55,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.33 : 102,321.98 = 40,155.08 : x
  2. Step 2: Convert to fraction form
    74,146.33/102,321.98 = 40,155.08/x
  3. Step 3: Cross multiply
    74,146.33x = 102,321.98 × 40,155.08
  4. Step 4: Simplify right side
    74,146.33x = 4,108,747,292.66
  5. Step 5: Solve for x
    x = 4,108,747,292.66/74,146.33
  6. Step 6: Final answer
    x = 55,414.03

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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.