Home / 82,181.05-113,423.76-47,720.41

Finding the Fourth Proportional to 82,181.05, 113,423.76 and 47,720.41

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Solution

The fourth proportional to 82,181.05, 113,423.76 and 47,720.41 is: 65,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,181.05 : 113,423.76 = 47,720.41 : x
  2. Step 2: Convert to fraction form
    82,181.05/113,423.76 = 47,720.41/x
  3. Step 3: Cross multiply
    82,181.05x = 113,423.76 × 47,720.41
  4. Step 4: Simplify right side
    82,181.05x = 5,412,628,330.94
  5. Step 5: Solve for x
    x = 5,412,628,330.94/82,181.05
  6. Step 6: Final answer
    x = 65,862.24

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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.