Home / 57,000.20-85,403.10-47,085.80

Finding the Fourth Proportional to 57,000.20, 85,403.10 and 47,085.80

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Solution

The fourth proportional to 57,000.20, 85,403.10 and 47,085.80 is: 70,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,000.20 : 85,403.10 = 47,085.80 : x
  2. Step 2: Convert to fraction form
    57,000.20/85,403.10 = 47,085.80/x
  3. Step 3: Cross multiply
    57,000.20x = 85,403.10 × 47,085.80
  4. Step 4: Simplify right side
    57,000.20x = 4,021,273,285.98
  5. Step 5: Solve for x
    x = 4,021,273,285.98/57,000.20
  6. Step 6: Final answer
    x = 70,548.41

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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.