Home / 74,141.33-102,315.08-40,150.08

Finding the Fourth Proportional to 74,141.33, 102,315.08 and 40,150.08

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Solution

The fourth proportional to 74,141.33, 102,315.08 and 40,150.08 is: 55,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,141.33 : 102,315.08 = 40,150.08 : x
  2. Step 2: Convert to fraction form
    74,141.33/102,315.08 = 40,150.08/x
  3. Step 3: Cross multiply
    74,141.33x = 102,315.08 × 40,150.08
  4. Step 4: Simplify right side
    74,141.33x = 4,107,958,747.58
  5. Step 5: Solve for x
    x = 4,107,958,747.58/74,141.33
  6. Step 6: Final answer
    x = 55,407.14

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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.