Home / 61,666.30-85,078.72-40,146.22

Finding the Fourth Proportional to 61,666.30, 85,078.72 and 40,146.22

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Solution

The fourth proportional to 61,666.30, 85,078.72 and 40,146.22 is: 55,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.30 : 85,078.72 = 40,146.22 : x
  2. Step 2: Convert to fraction form
    61,666.30/85,078.72 = 40,146.22/x
  3. Step 3: Cross multiply
    61,666.30x = 85,078.72 × 40,146.22
  4. Step 4: Simplify right side
    61,666.30x = 3,415,589,010.44
  5. Step 5: Solve for x
    x = 3,415,589,010.44/61,666.30
  6. Step 6: Final answer
    x = 55,388.26

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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.