Home / 57,083.50-78,775.23-31,937.86

Finding the Fourth Proportional to 57,083.50, 78,775.23 and 31,937.86

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Solution

The fourth proportional to 57,083.50, 78,775.23 and 31,937.86 is: 44,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,083.50 : 78,775.23 = 31,937.86 : x
  2. Step 2: Convert to fraction form
    57,083.50/78,775.23 = 31,937.86/x
  3. Step 3: Cross multiply
    57,083.50x = 78,775.23 × 31,937.86
  4. Step 4: Simplify right side
    57,083.50x = 2,515,912,267.21
  5. Step 5: Solve for x
    x = 2,515,912,267.21/57,083.50
  6. Step 6: Final answer
    x = 44,074.25

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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.