Home / 81,267.32-121,808.43-50,886.65

Finding the Fourth Proportional to 81,267.32, 121,808.43 and 50,886.65

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Solution

The fourth proportional to 81,267.32, 121,808.43 and 50,886.65 is: 76,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.32 : 121,808.43 = 50,886.65 : x
  2. Step 2: Convert to fraction form
    81,267.32/121,808.43 = 50,886.65/x
  3. Step 3: Cross multiply
    81,267.32x = 121,808.43 × 50,886.65
  4. Step 4: Simplify right side
    81,267.32x = 6,198,422,335.42
  5. Step 5: Solve for x
    x = 6,198,422,335.42/81,267.32
  6. Step 6: Final answer
    x = 76,272.02

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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.