Home / 90,628.40-135,942.60-62,634.80

Finding the Fourth Proportional to 90,628.40, 135,942.60 and 62,634.80

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Solution

The fourth proportional to 90,628.40, 135,942.60 and 62,634.80 is: 93,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,628.40 : 135,942.60 = 62,634.80 : x
  2. Step 2: Convert to fraction form
    90,628.40/135,942.60 = 62,634.80/x
  3. Step 3: Cross multiply
    90,628.40x = 135,942.60 × 62,634.80
  4. Step 4: Simplify right side
    90,628.40x = 8,514,737,562.48
  5. Step 5: Solve for x
    x = 8,514,737,562.48/90,628.40
  6. Step 6: Final answer
    x = 93,952.20

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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.