Home / 90,896.79-136,407.46-31,732.45

Finding the Fourth Proportional to 90,896.79, 136,407.46 and 31,732.45

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Solution

The fourth proportional to 90,896.79, 136,407.46 and 31,732.45 is: 47,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,896.79 : 136,407.46 = 31,732.45 : x
  2. Step 2: Convert to fraction form
    90,896.79/136,407.46 = 31,732.45/x
  3. Step 3: Cross multiply
    90,896.79x = 136,407.46 × 31,732.45
  4. Step 4: Simplify right side
    90,896.79x = 4,328,543,435.41
  5. Step 5: Solve for x
    x = 4,328,543,435.41/90,896.79
  6. Step 6: Final answer
    x = 47,620.42

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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.