Home / 84,390.38-126,590.21-25,230.66

Finding the Fourth Proportional to 84,390.38, 126,590.21 and 25,230.66

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Solution

The fourth proportional to 84,390.38, 126,590.21 and 25,230.66 is: 37,847.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,390.38 : 126,590.21 = 25,230.66 : x
  2. Step 2: Convert to fraction form
    84,390.38/126,590.21 = 25,230.66/x
  3. Step 3: Cross multiply
    84,390.38x = 126,590.21 × 25,230.66
  4. Step 4: Simplify right side
    84,390.38x = 3,193,954,547.84
  5. Step 5: Solve for x
    x = 3,193,954,547.84/84,390.38
  6. Step 6: Final answer
    x = 37,847.38

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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.