Home / 91,049.96-136,636.68-31,886.12

Finding the Fourth Proportional to 91,049.96, 136,636.68 and 31,886.12

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Solution

The fourth proportional to 91,049.96, 136,636.68 and 31,886.12 is: 47,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,049.96 : 136,636.68 = 31,886.12 : x
  2. Step 2: Convert to fraction form
    91,049.96/136,636.68 = 31,886.12/x
  3. Step 3: Cross multiply
    91,049.96x = 136,636.68 × 31,886.12
  4. Step 4: Simplify right side
    91,049.96x = 4,356,813,574.88
  5. Step 5: Solve for x
    x = 4,356,813,574.88/91,049.96
  6. Step 6: Final answer
    x = 47,850.80

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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.