Home / 86,520.87-119,398.59-48,278.07

Finding the Fourth Proportional to 86,520.87, 119,398.59 and 48,278.07

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Solution

The fourth proportional to 86,520.87, 119,398.59 and 48,278.07 is: 66,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,520.87 : 119,398.59 = 48,278.07 : x
  2. Step 2: Convert to fraction form
    86,520.87/119,398.59 = 48,278.07/x
  3. Step 3: Cross multiply
    86,520.87x = 119,398.59 × 48,278.07
  4. Step 4: Simplify right side
    86,520.87x = 5,764,333,485.92
  5. Step 5: Solve for x
    x = 5,764,333,485.92/86,520.87
  6. Step 6: Final answer
    x = 66,623.62

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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.