Home / 66,539.70-91,811.07-38,239.92

Finding the Fourth Proportional to 66,539.70, 91,811.07 and 38,239.92

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Solution

The fourth proportional to 66,539.70, 91,811.07 and 38,239.92 is: 52,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.70 : 91,811.07 = 38,239.92 : x
  2. Step 2: Convert to fraction form
    66,539.70/91,811.07 = 38,239.92/x
  3. Step 3: Cross multiply
    66,539.70x = 91,811.07 × 38,239.92
  4. Step 4: Simplify right side
    66,539.70x = 3,510,847,971.91
  5. Step 5: Solve for x
    x = 3,510,847,971.91/66,539.70
  6. Step 6: Final answer
    x = 52,763.21

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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.