Home / 57,216.76-78,912.51-40,277.23

Finding the Fourth Proportional to 57,216.76, 78,912.51 and 40,277.23

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Solution

The fourth proportional to 57,216.76, 78,912.51 and 40,277.23 is: 55,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.76 : 78,912.51 = 40,277.23 : x
  2. Step 2: Convert to fraction form
    57,216.76/78,912.51 = 40,277.23/x
  3. Step 3: Cross multiply
    57,216.76x = 78,912.51 × 40,277.23
  4. Step 4: Simplify right side
    57,216.76x = 3,178,377,315.15
  5. Step 5: Solve for x
    x = 3,178,377,315.15/57,216.76
  6. Step 6: Final answer
    x = 55,549.76

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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.