Home / 92,209.60-137,965.44-54,789.76

Finding the Fourth Proportional to 92,209.60, 137,965.44 and 54,789.76

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Solution

The fourth proportional to 92,209.60, 137,965.44 and 54,789.76 is: 81,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,209.60 : 137,965.44 = 54,789.76 : x
  2. Step 2: Convert to fraction form
    92,209.60/137,965.44 = 54,789.76/x
  3. Step 3: Cross multiply
    92,209.60x = 137,965.44 × 54,789.76
  4. Step 4: Simplify right side
    92,209.60x = 7,559,093,345.89
  5. Step 5: Solve for x
    x = 7,559,093,345.89/92,209.60
  6. Step 6: Final answer
    x = 81,977.29

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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.