Home / 82,393.75-123,590.55-71,267.36

Finding the Fourth Proportional to 82,393.75, 123,590.55 and 71,267.36

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Solution

The fourth proportional to 82,393.75, 123,590.55 and 71,267.36 is: 106,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,393.75 : 123,590.55 = 71,267.36 : x
  2. Step 2: Convert to fraction form
    82,393.75/123,590.55 = 71,267.36/x
  3. Step 3: Cross multiply
    82,393.75x = 123,590.55 × 71,267.36
  4. Step 4: Simplify right side
    82,393.75x = 8,807,971,863.11
  5. Step 5: Solve for x
    x = 8,807,971,863.11/82,393.75
  6. Step 6: Final answer
    x = 106,900.97

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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.