Home / 91,538.96-126,312.68-51,249.56

Finding the Fourth Proportional to 91,538.96, 126,312.68 and 51,249.56

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Solution

The fourth proportional to 91,538.96, 126,312.68 and 51,249.56 is: 70,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,538.96 : 126,312.68 = 51,249.56 : x
  2. Step 2: Convert to fraction form
    91,538.96/126,312.68 = 51,249.56/x
  3. Step 3: Cross multiply
    91,538.96x = 126,312.68 × 51,249.56
  4. Step 4: Simplify right side
    91,538.96x = 6,473,469,272.42
  5. Step 5: Solve for x
    x = 6,473,469,272.42/91,538.96
  6. Step 6: Final answer
    x = 70,718.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.