Home / 57,765.05-86,655.80-17,787.39

Finding the Fourth Proportional to 57,765.05, 86,655.80 and 17,787.39

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Solution

The fourth proportional to 57,765.05, 86,655.80 and 17,787.39 is: 26,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.05 : 86,655.80 = 17,787.39 : x
  2. Step 2: Convert to fraction form
    57,765.05/86,655.80 = 17,787.39/x
  3. Step 3: Cross multiply
    57,765.05x = 86,655.80 × 17,787.39
  4. Step 4: Simplify right side
    57,765.05x = 1,541,380,510.36
  5. Step 5: Solve for x
    x = 1,541,380,510.36/57,765.05
  6. Step 6: Final answer
    x = 26,683.62

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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.