Home / 66,712.21-92,047.79-39,849.47

Finding the Fourth Proportional to 66,712.21, 92,047.79 and 39,849.47

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Solution

The fourth proportional to 66,712.21, 92,047.79 and 39,849.47 is: 54,983.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.21 : 92,047.79 = 39,849.47 : x
  2. Step 2: Convert to fraction form
    66,712.21/92,047.79 = 39,849.47/x
  3. Step 3: Cross multiply
    66,712.21x = 92,047.79 × 39,849.47
  4. Step 4: Simplify right side
    66,712.21x = 3,668,055,630.74
  5. Step 5: Solve for x
    x = 3,668,055,630.74/66,712.21
  6. Step 6: Final answer
    x = 54,983.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.