Home / 91,047.96-136,633.68-31,884.12

Finding the Fourth Proportional to 91,047.96, 136,633.68 and 31,884.12

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Solution

The fourth proportional to 91,047.96, 136,633.68 and 31,884.12 is: 47,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,047.96 : 136,633.68 = 31,884.12 : x
  2. Step 2: Convert to fraction form
    91,047.96/136,633.68 = 31,884.12/x
  3. Step 3: Cross multiply
    91,047.96x = 136,633.68 × 31,884.12
  4. Step 4: Simplify right side
    91,047.96x = 4,356,444,649.16
  5. Step 5: Solve for x
    x = 4,356,444,649.16/91,047.96
  6. Step 6: Final answer
    x = 47,847.80

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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.