Home / 77,003.14-115,504.68-28,980.76

Finding the Fourth Proportional to 77,003.14, 115,504.68 and 28,980.76

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Solution

The fourth proportional to 77,003.14, 115,504.68 and 28,980.76 is: 43,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.14 : 115,504.68 = 28,980.76 : x
  2. Step 2: Convert to fraction form
    77,003.14/115,504.68 = 28,980.76/x
  3. Step 3: Cross multiply
    77,003.14x = 115,504.68 × 28,980.76
  4. Step 4: Simplify right side
    77,003.14x = 3,347,413,409.96
  5. Step 5: Solve for x
    x = 3,347,413,409.96/77,003.14
  6. Step 6: Final answer
    x = 43,471.13

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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.