Home / 81,945.62-113,084.93-47,960.58

Finding the Fourth Proportional to 81,945.62, 113,084.93 and 47,960.58

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Solution

The fourth proportional to 81,945.62, 113,084.93 and 47,960.58 is: 66,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,945.62 : 113,084.93 = 47,960.58 : x
  2. Step 2: Convert to fraction form
    81,945.62/113,084.93 = 47,960.58/x
  3. Step 3: Cross multiply
    81,945.62x = 113,084.93 × 47,960.58
  4. Step 4: Simplify right side
    81,945.62x = 5,423,618,592.26
  5. Step 5: Solve for x
    x = 5,423,618,592.26/81,945.62
  6. Step 6: Final answer
    x = 66,185.58

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1.5x scale

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.