Home / 77,018.73-115,539.06-23,715.18

Finding the Fourth Proportional to 77,018.73, 115,539.06 and 23,715.18

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Solution

The fourth proportional to 77,018.73, 115,539.06 and 23,715.18 is: 35,576.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,018.73 : 115,539.06 = 23,715.18 : x
  2. Step 2: Convert to fraction form
    77,018.73/115,539.06 = 23,715.18/x
  3. Step 3: Cross multiply
    77,018.73x = 115,539.06 × 23,715.18
  4. Step 4: Simplify right side
    77,018.73x = 2,740,029,604.93
  5. Step 5: Solve for x
    x = 2,740,029,604.93/77,018.73
  6. Step 6: Final answer
    x = 35,576.15

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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.