Home / 77,313.08-115,972.68-36,776.85

Finding the Fourth Proportional to 77,313.08, 115,972.68 and 36,776.85

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Solution

The fourth proportional to 77,313.08, 115,972.68 and 36,776.85 is: 55,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,313.08 : 115,972.68 = 36,776.85 : x
  2. Step 2: Convert to fraction form
    77,313.08/115,972.68 = 36,776.85/x
  3. Step 3: Cross multiply
    77,313.08x = 115,972.68 × 36,776.85
  4. Step 4: Simplify right side
    77,313.08x = 4,265,110,486.28
  5. Step 5: Solve for x
    x = 4,265,110,486.28/77,313.08
  6. Step 6: Final answer
    x = 55,166.74

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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.