Home / 73,125.20-109,716.60-28,744.40

Finding the Fourth Proportional to 73,125.20, 109,716.60 and 28,744.40

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Solution

The fourth proportional to 73,125.20, 109,716.60 and 28,744.40 is: 43,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,125.20 : 109,716.60 = 28,744.40 : x
  2. Step 2: Convert to fraction form
    73,125.20/109,716.60 = 28,744.40/x
  3. Step 3: Cross multiply
    73,125.20x = 109,716.60 × 28,744.40
  4. Step 4: Simplify right side
    73,125.20x = 3,153,737,837.04
  5. Step 5: Solve for x
    x = 3,153,737,837.04/73,125.20
  6. Step 6: Final answer
    x = 43,127.92

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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.