Home / 51,344.10-70,825.30-30,911.96

Finding the Fourth Proportional to 51,344.10, 70,825.30 and 30,911.96

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Solution

The fourth proportional to 51,344.10, 70,825.30 and 30,911.96 is: 42,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,344.10 : 70,825.30 = 30,911.96 : x
  2. Step 2: Convert to fraction form
    51,344.10/70,825.30 = 30,911.96/x
  3. Step 3: Cross multiply
    51,344.10x = 70,825.30 × 30,911.96
  4. Step 4: Simplify right side
    51,344.10x = 2,189,348,840.59
  5. Step 5: Solve for x
    x = 2,189,348,840.59/51,344.10
  6. Step 6: Final answer
    x = 42,640.71

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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.