Home / 76,350.82-105,363.96-42,364.48

Finding the Fourth Proportional to 76,350.82, 105,363.96 and 42,364.48

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Solution

The fourth proportional to 76,350.82, 105,363.96 and 42,364.48 is: 58,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,350.82 : 105,363.96 = 42,364.48 : x
  2. Step 2: Convert to fraction form
    76,350.82/105,363.96 = 42,364.48/x
  3. Step 3: Cross multiply
    76,350.82x = 105,363.96 × 42,364.48
  4. Step 4: Simplify right side
    76,350.82x = 4,463,689,376.14
  5. Step 5: Solve for x
    x = 4,463,689,376.14/76,350.82
  6. Step 6: Final answer
    x = 58,462.89

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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.