Home / 81,161.37-112,003.25-45,352.89

Finding the Fourth Proportional to 81,161.37, 112,003.25 and 45,352.89

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Solution

The fourth proportional to 81,161.37, 112,003.25 and 45,352.89 is: 62,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,161.37 : 112,003.25 = 45,352.89 : x
  2. Step 2: Convert to fraction form
    81,161.37/112,003.25 = 45,352.89/x
  3. Step 3: Cross multiply
    81,161.37x = 112,003.25 × 45,352.89
  4. Step 4: Simplify right side
    81,161.37x = 5,079,670,850.13
  5. Step 5: Solve for x
    x = 5,079,670,850.13/81,161.37
  6. Step 6: Final answer
    x = 62,587.30

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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.