Home / 51,171.48-70,615.80-28,512

Finding the Fourth Proportional to 51,171.48, 70,615.80 and 28,512

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Solution

The fourth proportional to 51,171.48, 70,615.80 and 28,512 is: 39,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,171.48 : 70,615.80 = 28,512 : x
  2. Step 2: Convert to fraction form
    51,171.48/70,615.80 = 28,512/x
  3. Step 3: Cross multiply
    51,171.48x = 70,615.80 × 28,512
  4. Step 4: Simplify right side
    51,171.48x = 2,013,397,689.60
  5. Step 5: Solve for x
    x = 2,013,397,689.60/51,171.48
  6. Step 6: Final answer
    x = 39,346.09

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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.