Home / 57,157.56-85,867.74-40,329.30

Finding the Fourth Proportional to 57,157.56, 85,867.74 and 40,329.30

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Solution

The fourth proportional to 57,157.56, 85,867.74 and 40,329.30 is: 60,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,157.56 : 85,867.74 = 40,329.30 : x
  2. Step 2: Convert to fraction form
    57,157.56/85,867.74 = 40,329.30/x
  3. Step 3: Cross multiply
    57,157.56x = 85,867.74 × 40,329.30
  4. Step 4: Simplify right side
    57,157.56x = 3,462,985,846.78
  5. Step 5: Solve for x
    x = 3,462,985,846.78/57,157.56
  6. Step 6: Final answer
    x = 60,586.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.