Home / 81,995.23-113,114.75-47,982.86

Finding the Fourth Proportional to 81,995.23, 113,114.75 and 47,982.86

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Solution

The fourth proportional to 81,995.23, 113,114.75 and 47,982.86 is: 66,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995.23 : 113,114.75 = 47,982.86 : x
  2. Step 2: Convert to fraction form
    81,995.23/113,114.75 = 47,982.86/x
  3. Step 3: Cross multiply
    81,995.23x = 113,114.75 × 47,982.86
  4. Step 4: Simplify right side
    81,995.23x = 5,427,569,873.00
  5. Step 5: Solve for x
    x = 5,427,569,873.00/81,995.23
  6. Step 6: Final answer
    x = 66,193.73

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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.