Home / 40,670.10-61,007.32-12,609.54

Finding the Fourth Proportional to 40,670.10, 61,007.32 and 12,609.54

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Solution

The fourth proportional to 40,670.10, 61,007.32 and 12,609.54 is: 18,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,670.10 : 61,007.32 = 12,609.54 : x
  2. Step 2: Convert to fraction form
    40,670.10/61,007.32 = 12,609.54/x
  3. Step 3: Cross multiply
    40,670.10x = 61,007.32 × 12,609.54
  4. Step 4: Simplify right side
    40,670.10x = 769,274,241.83
  5. Step 5: Solve for x
    x = 769,274,241.83/40,670.10
  6. Step 6: Final answer
    x = 18,914.98

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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.