Home / 80,928.62-121,427.91-43,444.92

Finding the Fourth Proportional to 80,928.62, 121,427.91 and 43,444.92

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Solution

The fourth proportional to 80,928.62, 121,427.91 and 43,444.92 is: 65,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,928.62 : 121,427.91 = 43,444.92 : x
  2. Step 2: Convert to fraction form
    80,928.62/121,427.91 = 43,444.92/x
  3. Step 3: Cross multiply
    80,928.62x = 121,427.91 × 43,444.92
  4. Step 4: Simplify right side
    80,928.62x = 5,275,425,835.72
  5. Step 5: Solve for x
    x = 5,275,425,835.72/80,928.62
  6. Step 6: Final answer
    x = 65,186.16

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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.