Home / 85,309.21-117,727.92-47,070.43

Finding the Fourth Proportional to 85,309.21, 117,727.92 and 47,070.43

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Solution

The fourth proportional to 85,309.21, 117,727.92 and 47,070.43 is: 64,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,309.21 : 117,727.92 = 47,070.43 : x
  2. Step 2: Convert to fraction form
    85,309.21/117,727.92 = 47,070.43/x
  3. Step 3: Cross multiply
    85,309.21x = 117,727.92 × 47,070.43
  4. Step 4: Simplify right side
    85,309.21x = 5,541,503,817.41
  5. Step 5: Solve for x
    x = 5,541,503,817.41/85,309.21
  6. Step 6: Final answer
    x = 64,957.86

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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.