Home / 84,561.68-126,817.21-53,019.67

Finding the Fourth Proportional to 84,561.68, 126,817.21 and 53,019.67

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Solution

The fourth proportional to 84,561.68, 126,817.21 and 53,019.67 is: 79,513.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,561.68 : 126,817.21 = 53,019.67 : x
  2. Step 2: Convert to fraction form
    84,561.68/126,817.21 = 53,019.67/x
  3. Step 3: Cross multiply
    84,561.68x = 126,817.21 × 53,019.67
  4. Step 4: Simplify right side
    84,561.68x = 6,723,806,624.52
  5. Step 5: Solve for x
    x = 6,723,806,624.52/84,561.68
  6. Step 6: Final answer
    x = 79,513.64

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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.