Home / 51,252.25-70,728.12-28,896.25

Finding the Fourth Proportional to 51,252.25, 70,728.12 and 28,896.25

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Solution

The fourth proportional to 51,252.25, 70,728.12 and 28,896.25 is: 39,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,252.25 : 70,728.12 = 28,896.25 : x
  2. Step 2: Convert to fraction form
    51,252.25/70,728.12 = 28,896.25/x
  3. Step 3: Cross multiply
    51,252.25x = 70,728.12 × 28,896.25
  4. Step 4: Simplify right side
    51,252.25x = 2,043,777,437.55
  5. Step 5: Solve for x
    x = 2,043,777,437.55/51,252.25
  6. Step 6: Final answer
    x = 39,876.83

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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.