Home / 66,742.68-92,095.82-39,879.52

Finding the Fourth Proportional to 66,742.68, 92,095.82 and 39,879.52

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Solution

The fourth proportional to 66,742.68, 92,095.82 and 39,879.52 is: 55,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,742.68 : 92,095.82 = 39,879.52 : x
  2. Step 2: Convert to fraction form
    66,742.68/92,095.82 = 39,879.52/x
  3. Step 3: Cross multiply
    66,742.68x = 92,095.82 × 39,879.52
  4. Step 4: Simplify right side
    66,742.68x = 3,672,737,095.61
  5. Step 5: Solve for x
    x = 3,672,737,095.61/66,742.68
  6. Step 6: Final answer
    x = 55,028.31

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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.