Home / 92,639.31-138,889.85-43,379.79

Finding the Fourth Proportional to 92,639.31, 138,889.85 and 43,379.79

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Solution

The fourth proportional to 92,639.31, 138,889.85 and 43,379.79 is: 65,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,639.31 : 138,889.85 = 43,379.79 : x
  2. Step 2: Convert to fraction form
    92,639.31/138,889.85 = 43,379.79/x
  3. Step 3: Cross multiply
    92,639.31x = 138,889.85 × 43,379.79
  4. Step 4: Simplify right side
    92,639.31x = 6,025,012,309.23
  5. Step 5: Solve for x
    x = 6,025,012,309.23/92,639.31
  6. Step 6: Final answer
    x = 65,037.32

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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.