Home / 91,241.79-136,765.87-53,819.49

Finding the Fourth Proportional to 91,241.79, 136,765.87 and 53,819.49

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Solution

The fourth proportional to 91,241.79, 136,765.87 and 53,819.49 is: 80,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,241.79 : 136,765.87 = 53,819.49 : x
  2. Step 2: Convert to fraction form
    91,241.79/136,765.87 = 53,819.49/x
  3. Step 3: Cross multiply
    91,241.79x = 136,765.87 × 53,819.49
  4. Step 4: Simplify right side
    91,241.79x = 7,360,668,981.82
  5. Step 5: Solve for x
    x = 7,360,668,981.82/91,241.79
  6. Step 6: Final answer
    x = 80,672.12

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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.