Home / 86,730.12-119,544.36-58,039.56

Finding the Fourth Proportional to 86,730.12, 119,544.36 and 58,039.56

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Solution

The fourth proportional to 86,730.12, 119,544.36 and 58,039.56 is: 79,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,730.12 : 119,544.36 = 58,039.56 : x
  2. Step 2: Convert to fraction form
    86,730.12/119,544.36 = 58,039.56/x
  3. Step 3: Cross multiply
    86,730.12x = 119,544.36 × 58,039.56
  4. Step 4: Simplify right side
    86,730.12x = 6,938,302,054.88
  5. Step 5: Solve for x
    x = 6,938,302,054.88/86,730.12
  6. Step 6: Final answer
    x = 79,998.76

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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.