Home / 51,291.78-70,786.22-28,635.23

Finding the Fourth Proportional to 51,291.78, 70,786.22 and 28,635.23

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Solution

The fourth proportional to 51,291.78, 70,786.22 and 28,635.23 is: 39,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,291.78 : 70,786.22 = 28,635.23 : x
  2. Step 2: Convert to fraction form
    51,291.78/70,786.22 = 28,635.23/x
  3. Step 3: Cross multiply
    51,291.78x = 70,786.22 × 28,635.23
  4. Step 4: Simplify right side
    51,291.78x = 2,026,979,193.42
  5. Step 5: Solve for x
    x = 2,026,979,193.42/51,291.78
  6. Step 6: Final answer
    x = 39,518.60

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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.