Home / 82,872.10-124,416.56-49,199.59

Finding the Fourth Proportional to 82,872.10, 124,416.56 and 49,199.59

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Solution

The fourth proportional to 82,872.10, 124,416.56 and 49,199.59 is: 73,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,872.10 : 124,416.56 = 49,199.59 : x
  2. Step 2: Convert to fraction form
    82,872.10/124,416.56 = 49,199.59/x
  3. Step 3: Cross multiply
    82,872.10x = 124,416.56 × 49,199.59
  4. Step 4: Simplify right side
    82,872.10x = 6,121,243,741.21
  5. Step 5: Solve for x
    x = 6,121,243,741.21/82,872.10
  6. Step 6: Final answer
    x = 73,863.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.