Home / 40,749.21-61,111.37-28,179.77

Finding the Fourth Proportional to 40,749.21, 61,111.37 and 28,179.77

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Solution

The fourth proportional to 40,749.21, 61,111.37 and 28,179.77 is: 42,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,749.21 : 61,111.37 = 28,179.77 : x
  2. Step 2: Convert to fraction form
    40,749.21/61,111.37 = 28,179.77/x
  3. Step 3: Cross multiply
    40,749.21x = 61,111.37 × 28,179.77
  4. Step 4: Simplify right side
    40,749.21x = 1,722,104,115.88
  5. Step 5: Solve for x
    x = 1,722,104,115.88/40,749.21
  6. Step 6: Final answer
    x = 42,261.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.