Home / 74,826-112,238.85-43,639.38

Finding the Fourth Proportional to 74,826, 112,238.85 and 43,639.38

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Solution

The fourth proportional to 74,826, 112,238.85 and 43,639.38 is: 65,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,826 : 112,238.85 = 43,639.38 : x
  2. Step 2: Convert to fraction form
    74,826/112,238.85 = 43,639.38/x
  3. Step 3: Cross multiply
    74,826x = 112,238.85 × 43,639.38
  4. Step 4: Simplify right side
    74,826x = 4,898,033,825.91
  5. Step 5: Solve for x
    x = 4,898,033,825.91/74,826
  6. Step 6: Final answer
    x = 65,458.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.