Home / 51,278.37-70,767.70-28,621.78

Finding the Fourth Proportional to 51,278.37, 70,767.70 and 28,621.78

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Solution

The fourth proportional to 51,278.37, 70,767.70 and 28,621.78 is: 39,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.37 : 70,767.70 = 28,621.78 : x
  2. Step 2: Convert to fraction form
    51,278.37/70,767.70 = 28,621.78/x
  3. Step 3: Cross multiply
    51,278.37x = 70,767.70 × 28,621.78
  4. Step 4: Simplify right side
    51,278.37x = 2,025,497,540.51
  5. Step 5: Solve for x
    x = 2,025,497,540.51/51,278.37
  6. Step 6: Final answer
    x = 39,500.04

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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.