Home / 51,989.79-71,745.69-28,116.48

Finding the Fourth Proportional to 51,989.79, 71,745.69 and 28,116.48

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Solution

The fourth proportional to 51,989.79, 71,745.69 and 28,116.48 is: 38,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.79 : 71,745.69 = 28,116.48 : x
  2. Step 2: Convert to fraction form
    51,989.79/71,745.69 = 28,116.48/x
  3. Step 3: Cross multiply
    51,989.79x = 71,745.69 × 28,116.48
  4. Step 4: Simplify right side
    51,989.79x = 2,017,236,257.97
  5. Step 5: Solve for x
    x = 2,017,236,257.97/51,989.79
  6. Step 6: Final answer
    x = 38,800.62

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1.5x scale

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.