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Finding the Fourth Proportional to 51,277.89, 70,767.03 and 28,621.30

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Solution

The fourth proportional to 51,277.89, 70,767.03 and 28,621.30 is: 39,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,277.89 : 70,767.03 = 28,621.30 : x
  2. Step 2: Convert to fraction form
    51,277.89/70,767.03 = 28,621.30/x
  3. Step 3: Cross multiply
    51,277.89x = 70,767.03 × 28,621.30
  4. Step 4: Simplify right side
    51,277.89x = 2,025,444,338.09
  5. Step 5: Solve for x
    x = 2,025,444,338.09/51,277.89
  6. Step 6: Final answer
    x = 39,499.37

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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.