Home / 57,131.14-78,758.81-40,082.56

Finding the Fourth Proportional to 57,131.14, 78,758.81 and 40,082.56

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Solution

The fourth proportional to 57,131.14, 78,758.81 and 40,082.56 is: 55,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,131.14 : 78,758.81 = 40,082.56 : x
  2. Step 2: Convert to fraction form
    57,131.14/78,758.81 = 40,082.56/x
  3. Step 3: Cross multiply
    57,131.14x = 78,758.81 × 40,082.56
  4. Step 4: Simplify right side
    57,131.14x = 3,156,854,727.35
  5. Step 5: Solve for x
    x = 3,156,854,727.35/57,131.14
  6. Step 6: Final answer
    x = 55,256.29

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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.