Home / 77,631.82-116,364.68-40,154.16

Finding the Fourth Proportional to 77,631.82, 116,364.68 and 40,154.16

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Solution

The fourth proportional to 77,631.82, 116,364.68 and 40,154.16 is: 60,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,631.82 : 116,364.68 = 40,154.16 : x
  2. Step 2: Convert to fraction form
    77,631.82/116,364.68 = 40,154.16/x
  3. Step 3: Cross multiply
    77,631.82x = 116,364.68 × 40,154.16
  4. Step 4: Simplify right side
    77,631.82x = 4,672,526,591.11
  5. Step 5: Solve for x
    x = 4,672,526,591.11/77,631.82
  6. Step 6: Final answer
    x = 60,188.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.