Home / 76,862.50-114,529.62-68,478.09

Finding the Fourth Proportional to 76,862.50, 114,529.62 and 68,478.09

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Solution

The fourth proportional to 76,862.50, 114,529.62 and 68,478.09 is: 102,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,862.50 : 114,529.62 = 68,478.09 : x
  2. Step 2: Convert to fraction form
    76,862.50/114,529.62 = 68,478.09/x
  3. Step 3: Cross multiply
    76,862.50x = 114,529.62 × 68,478.09
  4. Step 4: Simplify right side
    76,862.50x = 7,842,768,882.18
  5. Step 5: Solve for x
    x = 7,842,768,882.18/76,862.50
  6. Step 6: Final answer
    x = 102,036.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.