Home / 80,834.58-111,501.23-57,821.94

Finding the Fourth Proportional to 80,834.58, 111,501.23 and 57,821.94

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Solution

The fourth proportional to 80,834.58, 111,501.23 and 57,821.94 is: 79,758.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,834.58 : 111,501.23 = 57,821.94 : x
  2. Step 2: Convert to fraction form
    80,834.58/111,501.23 = 57,821.94/x
  3. Step 3: Cross multiply
    80,834.58x = 111,501.23 × 57,821.94
  4. Step 4: Simplify right side
    80,834.58x = 6,447,217,141.88
  5. Step 5: Solve for x
    x = 6,447,217,141.88/80,834.58
  6. Step 6: Final answer
    x = 79,758.16

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1.5x scale

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.