Home / 60,431.21-90,615.69-27,122.72

Finding the Fourth Proportional to 60,431.21, 90,615.69 and 27,122.72

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Solution

The fourth proportional to 60,431.21, 90,615.69 and 27,122.72 is: 40,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,431.21 : 90,615.69 = 27,122.72 : x
  2. Step 2: Convert to fraction form
    60,431.21/90,615.69 = 27,122.72/x
  3. Step 3: Cross multiply
    60,431.21x = 90,615.69 × 27,122.72
  4. Step 4: Simplify right side
    60,431.21x = 2,457,743,987.48
  5. Step 5: Solve for x
    x = 2,457,743,987.48/60,431.21
  6. Step 6: Final answer
    x = 40,670.11

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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.