Home / 66,920.15-92,339.92-43,079.12

Finding the Fourth Proportional to 66,920.15, 92,339.92 and 43,079.12

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Solution

The fourth proportional to 66,920.15, 92,339.92 and 43,079.12 is: 59,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,920.15 : 92,339.92 = 43,079.12 : x
  2. Step 2: Convert to fraction form
    66,920.15/92,339.92 = 43,079.12/x
  3. Step 3: Cross multiply
    66,920.15x = 92,339.92 × 43,079.12
  4. Step 4: Simplify right side
    66,920.15x = 3,977,922,294.35
  5. Step 5: Solve for x
    x = 3,977,922,294.35/66,920.15
  6. Step 6: Final answer
    x = 59,442.82

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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.