Home / 89,538-134,208.63-36,918.78

Finding the Fourth Proportional to 89,538, 134,208.63 and 36,918.78

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Solution

The fourth proportional to 89,538, 134,208.63 and 36,918.78 is: 55,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,538 : 134,208.63 = 36,918.78 : x
  2. Step 2: Convert to fraction form
    89,538/134,208.63 = 36,918.78/x
  3. Step 3: Cross multiply
    89,538x = 134,208.63 × 36,918.78
  4. Step 4: Simplify right side
    89,538x = 4,954,818,885.07
  5. Step 5: Solve for x
    x = 4,954,818,885.07/89,538
  6. Step 6: Final answer
    x = 55,337.61

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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.