Home / 91,174.35-136,747.85-28,836.75

Finding the Fourth Proportional to 91,174.35, 136,747.85 and 28,836.75

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Solution

The fourth proportional to 91,174.35, 136,747.85 and 28,836.75 is: 43,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,174.35 : 136,747.85 = 28,836.75 : x
  2. Step 2: Convert to fraction form
    91,174.35/136,747.85 = 28,836.75/x
  3. Step 3: Cross multiply
    91,174.35x = 136,747.85 × 28,836.75
  4. Step 4: Simplify right side
    91,174.35x = 3,943,363,419.30
  5. Step 5: Solve for x
    x = 3,943,363,419.30/91,174.35
  6. Step 6: Final answer
    x = 43,250.80

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1.5x scale

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.