Home / 76,981.73-115,428.49-23,659.83

Finding the Fourth Proportional to 76,981.73, 115,428.49 and 23,659.83

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Solution

The fourth proportional to 76,981.73, 115,428.49 and 23,659.83 is: 35,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,981.73 : 115,428.49 = 23,659.83 : x
  2. Step 2: Convert to fraction form
    76,981.73/115,428.49 = 23,659.83/x
  3. Step 3: Cross multiply
    76,981.73x = 115,428.49 × 23,659.83
  4. Step 4: Simplify right side
    76,981.73x = 2,731,018,524.49
  5. Step 5: Solve for x
    x = 2,731,018,524.49/76,981.73
  6. Step 6: Final answer
    x = 35,476.19

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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.