Home / 86,782.65-119,758.47-49,056.90

Finding the Fourth Proportional to 86,782.65, 119,758.47 and 49,056.90

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Solution

The fourth proportional to 86,782.65, 119,758.47 and 49,056.90 is: 67,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,782.65 : 119,758.47 = 49,056.90 : x
  2. Step 2: Convert to fraction form
    86,782.65/119,758.47 = 49,056.90/x
  3. Step 3: Cross multiply
    86,782.65x = 119,758.47 × 49,056.90
  4. Step 4: Simplify right side
    86,782.65x = 5,874,979,286.94
  5. Step 5: Solve for x
    x = 5,874,979,286.94/86,782.65
  6. Step 6: Final answer
    x = 67,697.62

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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.