Home / 80,848.42-121,258.19-28,272.98

Finding the Fourth Proportional to 80,848.42, 121,258.19 and 28,272.98

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Solution

The fourth proportional to 80,848.42, 121,258.19 and 28,272.98 is: 42,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,848.42 : 121,258.19 = 28,272.98 : x
  2. Step 2: Convert to fraction form
    80,848.42/121,258.19 = 28,272.98/x
  3. Step 3: Cross multiply
    80,848.42x = 121,258.19 × 28,272.98
  4. Step 4: Simplify right side
    80,848.42x = 3,428,330,380.71
  5. Step 5: Solve for x
    x = 3,428,330,380.71/80,848.42
  6. Step 6: Final answer
    x = 42,404.42

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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.