Home / 57,747.39-86,628.38-18,290.40

Finding the Fourth Proportional to 57,747.39, 86,628.38 and 18,290.40

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Solution

The fourth proportional to 57,747.39, 86,628.38 and 18,290.40 is: 27,437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,747.39 : 86,628.38 = 18,290.40 : x
  2. Step 2: Convert to fraction form
    57,747.39/86,628.38 = 18,290.40/x
  3. Step 3: Cross multiply
    57,747.39x = 86,628.38 × 18,290.40
  4. Step 4: Simplify right side
    57,747.39x = 1,584,467,630.10
  5. Step 5: Solve for x
    x = 1,584,467,630.10/57,747.39
  6. Step 6: Final answer
    x = 27,437.91

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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.