Home / 81,669.27-112,671.43-47,191.22

Finding the Fourth Proportional to 81,669.27, 112,671.43 and 47,191.22

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Solution

The fourth proportional to 81,669.27, 112,671.43 and 47,191.22 is: 65,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,669.27 : 112,671.43 = 47,191.22 : x
  2. Step 2: Convert to fraction form
    81,669.27/112,671.43 = 47,191.22/x
  3. Step 3: Cross multiply
    81,669.27x = 112,671.43 × 47,191.22
  4. Step 4: Simplify right side
    81,669.27x = 5,317,102,240.84
  5. Step 5: Solve for x
    x = 5,317,102,240.84/81,669.27
  6. Step 6: Final answer
    x = 65,105.30

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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.