Home / 61,777.44-85,207.77-39,120.12

Finding the Fourth Proportional to 61,777.44, 85,207.77 and 39,120.12

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Solution

The fourth proportional to 61,777.44, 85,207.77 and 39,120.12 is: 53,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,777.44 : 85,207.77 = 39,120.12 : x
  2. Step 2: Convert to fraction form
    61,777.44/85,207.77 = 39,120.12/x
  3. Step 3: Cross multiply
    61,777.44x = 85,207.77 × 39,120.12
  4. Step 4: Simplify right side
    61,777.44x = 3,333,338,187.33
  5. Step 5: Solve for x
    x = 3,333,338,187.33/61,777.44
  6. Step 6: Final answer
    x = 53,957.21

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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.