Home / 57,142.41-85,719.25-19,697.55

Finding the Fourth Proportional to 57,142.41, 85,719.25 and 19,697.55

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Solution

The fourth proportional to 57,142.41, 85,719.25 and 19,697.55 is: 29,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,142.41 : 85,719.25 = 19,697.55 : x
  2. Step 2: Convert to fraction form
    57,142.41/85,719.25 = 19,697.55/x
  3. Step 3: Cross multiply
    57,142.41x = 85,719.25 × 19,697.55
  4. Step 4: Simplify right side
    57,142.41x = 1,688,459,222.24
  5. Step 5: Solve for x
    x = 1,688,459,222.24/57,142.41
  6. Step 6: Final answer
    x = 29,548.27

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1.5x scale

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.