Home / 91,910.06-137,890.12-35,752.36

Finding the Fourth Proportional to 91,910.06, 137,890.12 and 35,752.36

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Solution

The fourth proportional to 91,910.06, 137,890.12 and 35,752.36 is: 53,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,910.06 : 137,890.12 = 35,752.36 : x
  2. Step 2: Convert to fraction form
    91,910.06/137,890.12 = 35,752.36/x
  3. Step 3: Cross multiply
    91,910.06x = 137,890.12 × 35,752.36
  4. Step 4: Simplify right side
    91,910.06x = 4,929,897,210.68
  5. Step 5: Solve for x
    x = 4,929,897,210.68/91,910.06
  6. Step 6: Final answer
    x = 53,638.28

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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.