Home / 74,530.40-102,850.97-40,538.17

Finding the Fourth Proportional to 74,530.40, 102,850.97 and 40,538.17

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Solution

The fourth proportional to 74,530.40, 102,850.97 and 40,538.17 is: 55,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,530.40 : 102,850.97 = 40,538.17 : x
  2. Step 2: Convert to fraction form
    74,530.40/102,850.97 = 40,538.17/x
  3. Step 3: Cross multiply
    74,530.40x = 102,850.97 × 40,538.17
  4. Step 4: Simplify right side
    74,530.40x = 4,169,390,032.40
  5. Step 5: Solve for x
    x = 4,169,390,032.40/74,530.40
  6. Step 6: Final answer
    x = 55,942.14

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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.