Home / 82,701.15-123,828.17-43,174.77

Finding the Fourth Proportional to 82,701.15, 123,828.17 and 43,174.77

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Solution

The fourth proportional to 82,701.15, 123,828.17 and 43,174.77 is: 64,645.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,701.15 : 123,828.17 = 43,174.77 : x
  2. Step 2: Convert to fraction form
    82,701.15/123,828.17 = 43,174.77/x
  3. Step 3: Cross multiply
    82,701.15x = 123,828.17 × 43,174.77
  4. Step 4: Simplify right side
    82,701.15x = 5,346,252,543.40
  5. Step 5: Solve for x
    x = 5,346,252,543.40/82,701.15
  6. Step 6: Final answer
    x = 64,645.44

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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.