Home / 51,431.34-70,971.91-28,766.41

Finding the Fourth Proportional to 51,431.34, 70,971.91 and 28,766.41

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Solution

The fourth proportional to 51,431.34, 70,971.91 and 28,766.41 is: 39,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,431.34 : 70,971.91 = 28,766.41 : x
  2. Step 2: Convert to fraction form
    51,431.34/70,971.91 = 28,766.41/x
  3. Step 3: Cross multiply
    51,431.34x = 70,971.91 × 28,766.41
  4. Step 4: Simplify right side
    51,431.34x = 2,041,606,974.01
  5. Step 5: Solve for x
    x = 2,041,606,974.01/51,431.34
  6. Step 6: Final answer
    x = 39,695.78

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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.