Home / 75,631.04-104,370.80-42,104.96

Finding the Fourth Proportional to 75,631.04, 104,370.80 and 42,104.96

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Solution

The fourth proportional to 75,631.04, 104,370.80 and 42,104.96 is: 58,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,631.04 : 104,370.80 = 42,104.96 : x
  2. Step 2: Convert to fraction form
    75,631.04/104,370.80 = 42,104.96/x
  3. Step 3: Cross multiply
    75,631.04x = 104,370.80 × 42,104.96
  4. Step 4: Simplify right side
    75,631.04x = 4,394,528,359.17
  5. Step 5: Solve for x
    x = 4,394,528,359.17/75,631.04
  6. Step 6: Final answer
    x = 58,104.83

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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.