Home / 252,591.20-378,883.50-72,681.32

Finding the Fourth Proportional to 252,591.20, 378,883.50 and 72,681.32

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Solution

The fourth proportional to 252,591.20, 378,883.50 and 72,681.32 is: 109,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,591.20 : 378,883.50 = 72,681.32 : x
  2. Step 2: Convert to fraction form
    252,591.20/378,883.50 = 72,681.32/x
  3. Step 3: Cross multiply
    252,591.20x = 378,883.50 × 72,681.32
  4. Step 4: Simplify right side
    252,591.20x = 27,537,752,906.22
  5. Step 5: Solve for x
    x = 27,537,752,906.22/252,591.20
  6. Step 6: Final answer
    x = 109,021.03

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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.