Home / 80,120.36-110,565.60-44,309.72

Finding the Fourth Proportional to 80,120.36, 110,565.60 and 44,309.72

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Solution

The fourth proportional to 80,120.36, 110,565.60 and 44,309.72 is: 61,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120.36 : 110,565.60 = 44,309.72 : x
  2. Step 2: Convert to fraction form
    80,120.36/110,565.60 = 44,309.72/x
  3. Step 3: Cross multiply
    80,120.36x = 110,565.60 × 44,309.72
  4. Step 4: Simplify right side
    80,120.36x = 4,899,130,777.63
  5. Step 5: Solve for x
    x = 4,899,130,777.63/80,120.36
  6. Step 6: Final answer
    x = 61,147.14

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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.