Home / 71,671.14-98,911.53-39,847.86

Finding the Fourth Proportional to 71,671.14, 98,911.53 and 39,847.86

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Solution

The fourth proportional to 71,671.14, 98,911.53 and 39,847.86 is: 54,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,671.14 : 98,911.53 = 39,847.86 : x
  2. Step 2: Convert to fraction form
    71,671.14/98,911.53 = 39,847.86/x
  3. Step 3: Cross multiply
    71,671.14x = 98,911.53 × 39,847.86
  4. Step 4: Simplify right side
    71,671.14x = 3,941,412,799.83
  5. Step 5: Solve for x
    x = 3,941,412,799.83/71,671.14
  6. Step 6: Final answer
    x = 54,993.03

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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.