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Finding the Fourth Proportional to 57,047.40, 85,571.10 and 15,494.40

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Solution

The fourth proportional to 57,047.40, 85,571.10 and 15,494.40 is: 23,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,047.40 : 85,571.10 = 15,494.40 : x
  2. Step 2: Convert to fraction form
    57,047.40/85,571.10 = 15,494.40/x
  3. Step 3: Cross multiply
    57,047.40x = 85,571.10 × 15,494.40
  4. Step 4: Simplify right side
    57,047.40x = 1,325,872,851.84
  5. Step 5: Solve for x
    x = 1,325,872,851.84/57,047.40
  6. Step 6: Final answer
    x = 23,241.60

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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.