Home / 66,742.44-92,137.92-38,442.66

Finding the Fourth Proportional to 66,742.44, 92,137.92 and 38,442.66

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Solution

The fourth proportional to 66,742.44, 92,137.92 and 38,442.66 is: 53,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,742.44 : 92,137.92 = 38,442.66 : x
  2. Step 2: Convert to fraction form
    66,742.44/92,137.92 = 38,442.66/x
  3. Step 3: Cross multiply
    66,742.44x = 92,137.92 × 38,442.66
  4. Step 4: Simplify right side
    66,742.44x = 3,542,026,731.67
  5. Step 5: Solve for x
    x = 3,542,026,731.67/66,742.44
  6. Step 6: Final answer
    x = 53,070.08

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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.