Home / 61,290.21-84,609.45-40,906.02

Finding the Fourth Proportional to 61,290.21, 84,609.45 and 40,906.02

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Solution

The fourth proportional to 61,290.21, 84,609.45 and 40,906.02 is: 56,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,290.21 : 84,609.45 = 40,906.02 : x
  2. Step 2: Convert to fraction form
    61,290.21/84,609.45 = 40,906.02/x
  3. Step 3: Cross multiply
    61,290.21x = 84,609.45 × 40,906.02
  4. Step 4: Simplify right side
    61,290.21x = 3,461,035,853.89
  5. Step 5: Solve for x
    x = 3,461,035,853.89/61,290.21
  6. Step 6: Final answer
    x = 56,469.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.