Home / 78,986.24-118,399.32-34,036.88

Finding the Fourth Proportional to 78,986.24, 118,399.32 and 34,036.88

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Solution

The fourth proportional to 78,986.24, 118,399.32 and 34,036.88 is: 51,020.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,986.24 : 118,399.32 = 34,036.88 : x
  2. Step 2: Convert to fraction form
    78,986.24/118,399.32 = 34,036.88/x
  3. Step 3: Cross multiply
    78,986.24x = 118,399.32 × 34,036.88
  4. Step 4: Simplify right side
    78,986.24x = 4,029,943,446.92
  5. Step 5: Solve for x
    x = 4,029,943,446.92/78,986.24
  6. Step 6: Final answer
    x = 51,020.83

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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.