Home / 85,355.07-117,801.86-47,631.75

Finding the Fourth Proportional to 85,355.07, 117,801.86 and 47,631.75

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Solution

The fourth proportional to 85,355.07, 117,801.86 and 47,631.75 is: 65,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,355.07 : 117,801.86 = 47,631.75 : x
  2. Step 2: Convert to fraction form
    85,355.07/117,801.86 = 47,631.75/x
  3. Step 3: Cross multiply
    85,355.07x = 117,801.86 × 47,631.75
  4. Step 4: Simplify right side
    85,355.07x = 5,611,108,506.90
  5. Step 5: Solve for x
    x = 5,611,108,506.90/85,355.07
  6. Step 6: Final answer
    x = 65,738.43

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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.