Home / 74,286.08-102,513-40,293.62

Finding the Fourth Proportional to 74,286.08, 102,513 and 40,293.62

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Solution

The fourth proportional to 74,286.08, 102,513 and 40,293.62 is: 55,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.08 : 102,513 = 40,293.62 : x
  2. Step 2: Convert to fraction form
    74,286.08/102,513 = 40,293.62/x
  3. Step 3: Cross multiply
    74,286.08x = 102,513 × 40,293.62
  4. Step 4: Simplify right side
    74,286.08x = 4,130,619,867.06
  5. Step 5: Solve for x
    x = 4,130,619,867.06/74,286.08
  6. Step 6: Final answer
    x = 55,604.22

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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.