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Finding the Fourth Proportional to 91,306.38, 136,770.89 and 53,750.73

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Solution

The fourth proportional to 91,306.38, 136,770.89 and 53,750.73 is: 80,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,306.38 : 136,770.89 = 53,750.73 : x
  2. Step 2: Convert to fraction form
    91,306.38/136,770.89 = 53,750.73/x
  3. Step 3: Cross multiply
    91,306.38x = 136,770.89 × 53,750.73
  4. Step 4: Simplify right side
    91,306.38x = 7,351,534,911.50
  5. Step 5: Solve for x
    x = 7,351,534,911.50/91,306.38
  6. Step 6: Final answer
    x = 80,515.02

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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.