Home / 84,986.06-127,479-40,477.82

Finding the Fourth Proportional to 84,986.06, 127,479 and 40,477.82

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Solution

The fourth proportional to 84,986.06, 127,479 and 40,477.82 is: 60,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,986.06 : 127,479 = 40,477.82 : x
  2. Step 2: Convert to fraction form
    84,986.06/127,479 = 40,477.82/x
  3. Step 3: Cross multiply
    84,986.06x = 127,479 × 40,477.82
  4. Step 4: Simplify right side
    84,986.06x = 5,160,072,015.78
  5. Step 5: Solve for x
    x = 5,160,072,015.78/84,986.06
  6. Step 6: Final answer
    x = 60,716.69

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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.