Home / 66,355.54-99,517.83-38,215.78

Finding the Fourth Proportional to 66,355.54, 99,517.83 and 38,215.78

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Solution

The fourth proportional to 66,355.54, 99,517.83 and 38,215.78 is: 57,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.54 : 99,517.83 = 38,215.78 : x
  2. Step 2: Convert to fraction form
    66,355.54/99,517.83 = 38,215.78/x
  3. Step 3: Cross multiply
    66,355.54x = 99,517.83 × 38,215.78
  4. Step 4: Simplify right side
    66,355.54x = 3,803,151,497.36
  5. Step 5: Solve for x
    x = 3,803,151,497.36/66,355.54
  6. Step 6: Final answer
    x = 57,314.75

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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.