Home / 91,217.17-136,790.88-43,819.08

Finding the Fourth Proportional to 91,217.17, 136,790.88 and 43,819.08

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Solution

The fourth proportional to 91,217.17, 136,790.88 and 43,819.08 is: 65,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,217.17 : 136,790.88 = 43,819.08 : x
  2. Step 2: Convert to fraction form
    91,217.17/136,790.88 = 43,819.08/x
  3. Step 3: Cross multiply
    91,217.17x = 136,790.88 × 43,819.08
  4. Step 4: Simplify right side
    91,217.17x = 5,994,050,513.99
  5. Step 5: Solve for x
    x = 5,994,050,513.99/91,217.17
  6. Step 6: Final answer
    x = 65,711.87

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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.