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Finding the Fourth Proportional to 57,507.81, 86,283.12 and 25,908.39

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Solution

The fourth proportional to 57,507.81, 86,283.12 and 25,908.39 is: 38,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,507.81 : 86,283.12 = 25,908.39 : x
  2. Step 2: Convert to fraction form
    57,507.81/86,283.12 = 25,908.39/x
  3. Step 3: Cross multiply
    57,507.81x = 86,283.12 × 25,908.39
  4. Step 4: Simplify right side
    57,507.81x = 2,235,456,820.53
  5. Step 5: Solve for x
    x = 2,235,456,820.53/57,507.81
  6. Step 6: Final answer
    x = 38,872.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.