Home / 57,107.06-78,771.18-45,803.68

Finding the Fourth Proportional to 57,107.06, 78,771.18 and 45,803.68

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Solution

The fourth proportional to 57,107.06, 78,771.18 and 45,803.68 is: 63,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,107.06 : 78,771.18 = 45,803.68 : x
  2. Step 2: Convert to fraction form
    57,107.06/78,771.18 = 45,803.68/x
  3. Step 3: Cross multiply
    57,107.06x = 78,771.18 × 45,803.68
  4. Step 4: Simplify right side
    57,107.06x = 3,608,010,339.87
  5. Step 5: Solve for x
    x = 3,608,010,339.87/57,107.06
  6. Step 6: Final answer
    x = 63,179.76

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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.