Home / 57,107.55-78,795.12-33,220.65

Finding the Fourth Proportional to 57,107.55, 78,795.12 and 33,220.65

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Solution

The fourth proportional to 57,107.55, 78,795.12 and 33,220.65 is: 45,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,107.55 : 78,795.12 = 33,220.65 : x
  2. Step 2: Convert to fraction form
    57,107.55/78,795.12 = 33,220.65/x
  3. Step 3: Cross multiply
    57,107.55x = 78,795.12 × 33,220.65
  4. Step 4: Simplify right side
    57,107.55x = 2,617,625,103.23
  5. Step 5: Solve for x
    x = 2,617,625,103.23/57,107.55
  6. Step 6: Final answer
    x = 45,836.76

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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.