Home / 53,238.60-79,870.05-18,177.75

Finding the Fourth Proportional to 53,238.60, 79,870.05 and 18,177.75

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Solution

The fourth proportional to 53,238.60, 79,870.05 and 18,177.75 is: 27,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,238.60 : 79,870.05 = 18,177.75 : x
  2. Step 2: Convert to fraction form
    53,238.60/79,870.05 = 18,177.75/x
  3. Step 3: Cross multiply
    53,238.60x = 79,870.05 × 18,177.75
  4. Step 4: Simplify right side
    53,238.60x = 1,451,857,801.39
  5. Step 5: Solve for x
    x = 1,451,857,801.39/53,238.60
  6. Step 6: Final answer
    x = 27,270.77

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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.