Home / 85,634.67-128,464.29-26,474.95

Finding the Fourth Proportional to 85,634.67, 128,464.29 and 26,474.95

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Solution

The fourth proportional to 85,634.67, 128,464.29 and 26,474.95 is: 39,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,634.67 : 128,464.29 = 26,474.95 : x
  2. Step 2: Convert to fraction form
    85,634.67/128,464.29 = 26,474.95/x
  3. Step 3: Cross multiply
    85,634.67x = 128,464.29 × 26,474.95
  4. Step 4: Simplify right side
    85,634.67x = 3,401,085,654.54
  5. Step 5: Solve for x
    x = 3,401,085,654.54/85,634.67
  6. Step 6: Final answer
    x = 39,716.22

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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.