Home / 89,781.41-134,590.01-39,871.44

Finding the Fourth Proportional to 89,781.41, 134,590.01 and 39,871.44

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Solution

The fourth proportional to 89,781.41, 134,590.01 and 39,871.44 is: 59,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,781.41 : 134,590.01 = 39,871.44 : x
  2. Step 2: Convert to fraction form
    89,781.41/134,590.01 = 39,871.44/x
  3. Step 3: Cross multiply
    89,781.41x = 134,590.01 × 39,871.44
  4. Step 4: Simplify right side
    89,781.41x = 5,366,297,308.96
  5. Step 5: Solve for x
    x = 5,366,297,308.96/89,781.41
  6. Step 6: Final answer
    x = 59,770.69

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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.