Home / 51,415.32-70,952.85-28,754.31

Finding the Fourth Proportional to 51,415.32, 70,952.85 and 28,754.31

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Solution

The fourth proportional to 51,415.32, 70,952.85 and 28,754.31 is: 39,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.32 : 70,952.85 = 28,754.31 : x
  2. Step 2: Convert to fraction form
    51,415.32/70,952.85 = 28,754.31/x
  3. Step 3: Cross multiply
    51,415.32x = 70,952.85 × 28,754.31
  4. Step 4: Simplify right side
    51,415.32x = 2,040,200,244.28
  5. Step 5: Solve for x
    x = 2,040,200,244.28/51,415.32
  6. Step 6: Final answer
    x = 39,680.78

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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.