Home / 61,169.16-84,431.34-39,951.66

Finding the Fourth Proportional to 61,169.16, 84,431.34 and 39,951.66

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Solution

The fourth proportional to 61,169.16, 84,431.34 and 39,951.66 is: 55,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,169.16 : 84,431.34 = 39,951.66 : x
  2. Step 2: Convert to fraction form
    61,169.16/84,431.34 = 39,951.66/x
  3. Step 3: Cross multiply
    61,169.16x = 84,431.34 × 39,951.66
  4. Step 4: Simplify right side
    61,169.16x = 3,373,172,189.02
  5. Step 5: Solve for x
    x = 3,373,172,189.02/61,169.16
  6. Step 6: Final answer
    x = 55,144.98

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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.