Home / 252,528.12-378,812.34-84,042.36

Finding the Fourth Proportional to 252,528.12, 378,812.34 and 84,042.36

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Solution

The fourth proportional to 252,528.12, 378,812.34 and 84,042.36 is: 126,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,528.12 : 378,812.34 = 84,042.36 : x
  2. Step 2: Convert to fraction form
    252,528.12/378,812.34 = 84,042.36/x
  3. Step 3: Cross multiply
    252,528.12x = 378,812.34 × 84,042.36
  4. Step 4: Simplify right side
    252,528.12x = 31,836,283,050.72
  5. Step 5: Solve for x
    x = 31,836,283,050.72/252,528.12
  6. Step 6: Final answer
    x = 126,070.25

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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.