Home / 81,645.24-112,676.94-45,837.60

Finding the Fourth Proportional to 81,645.24, 112,676.94 and 45,837.60

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Solution

The fourth proportional to 81,645.24, 112,676.94 and 45,837.60 is: 63,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645.24 : 112,676.94 = 45,837.60 : x
  2. Step 2: Convert to fraction form
    81,645.24/112,676.94 = 45,837.60/x
  3. Step 3: Cross multiply
    81,645.24x = 112,676.94 × 45,837.60
  4. Step 4: Simplify right side
    81,645.24x = 5,164,840,504.94
  5. Step 5: Solve for x
    x = 5,164,840,504.94/81,645.24
  6. Step 6: Final answer
    x = 63,259.54

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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.