Home / 39,660.48-54,788.40-31,692.24

Finding the Fourth Proportional to 39,660.48, 54,788.40 and 31,692.24

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Solution

The fourth proportional to 39,660.48, 54,788.40 and 31,692.24 is: 43,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,660.48 : 54,788.40 = 31,692.24 : x
  2. Step 2: Convert to fraction form
    39,660.48/54,788.40 = 31,692.24/x
  3. Step 3: Cross multiply
    39,660.48x = 54,788.40 × 31,692.24
  4. Step 4: Simplify right side
    39,660.48x = 1,736,367,122.02
  5. Step 5: Solve for x
    x = 1,736,367,122.02/39,660.48
  6. Step 6: Final answer
    x = 43,780.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.