Home / 77,617.20-116,507.24-68,789.04

Finding the Fourth Proportional to 77,617.20, 116,507.24 and 68,789.04

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Solution

The fourth proportional to 77,617.20, 116,507.24 and 68,789.04 is: 103,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,617.20 : 116,507.24 = 68,789.04 : x
  2. Step 2: Convert to fraction form
    77,617.20/116,507.24 = 68,789.04/x
  3. Step 3: Cross multiply
    77,617.20x = 116,507.24 × 68,789.04
  4. Step 4: Simplify right side
    77,617.20x = 8,014,421,192.65
  5. Step 5: Solve for x
    x = 8,014,421,192.65/77,617.20
  6. Step 6: Final answer
    x = 103,255.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.