Home / 91,147.84-125,788.04-50,861.76

Finding the Fourth Proportional to 91,147.84, 125,788.04 and 50,861.76

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Solution

The fourth proportional to 91,147.84, 125,788.04 and 50,861.76 is: 70,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,147.84 : 125,788.04 = 50,861.76 : x
  2. Step 2: Convert to fraction form
    91,147.84/125,788.04 = 50,861.76/x
  3. Step 3: Cross multiply
    91,147.84x = 125,788.04 × 50,861.76
  4. Step 4: Simplify right side
    91,147.84x = 6,397,801,096.74
  5. Step 5: Solve for x
    x = 6,397,801,096.74/91,147.84
  6. Step 6: Final answer
    x = 70,191.47

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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.