Home / 57,639.05-86,468.61-17,657.12

Finding the Fourth Proportional to 57,639.05, 86,468.61 and 17,657.12

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Solution

The fourth proportional to 57,639.05, 86,468.61 and 17,657.12 is: 26,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.05 : 86,468.61 = 17,657.12 : x
  2. Step 2: Convert to fraction form
    57,639.05/86,468.61 = 17,657.12/x
  3. Step 3: Cross multiply
    57,639.05x = 86,468.61 × 17,657.12
  4. Step 4: Simplify right side
    57,639.05x = 1,526,786,190.66
  5. Step 5: Solve for x
    x = 1,526,786,190.66/57,639.05
  6. Step 6: Final answer
    x = 26,488.75

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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.