Home / 85,282.58-117,687.20-47,042.04

Finding the Fourth Proportional to 85,282.58, 117,687.20 and 47,042.04

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Solution

The fourth proportional to 85,282.58, 117,687.20 and 47,042.04 is: 64,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,282.58 : 117,687.20 = 47,042.04 : x
  2. Step 2: Convert to fraction form
    85,282.58/117,687.20 = 47,042.04/x
  3. Step 3: Cross multiply
    85,282.58x = 117,687.20 × 47,042.04
  4. Step 4: Simplify right side
    85,282.58x = 5,536,245,969.89
  5. Step 5: Solve for x
    x = 5,536,245,969.89/85,282.58
  6. Step 6: Final answer
    x = 64,916.49

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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.